Parker Solar probe jumping through fire?












3














Is the principle of passing close the Sun with the Parker Solar probe the same as if you pass your hand over a candle flame fast enough you won't get burned?










share|improve this question



























    3














    Is the principle of passing close the Sun with the Parker Solar probe the same as if you pass your hand over a candle flame fast enough you won't get burned?










    share|improve this question

























      3












      3








      3







      Is the principle of passing close the Sun with the Parker Solar probe the same as if you pass your hand over a candle flame fast enough you won't get burned?










      share|improve this question













      Is the principle of passing close the Sun with the Parker Solar probe the same as if you pass your hand over a candle flame fast enough you won't get burned?







      the-sun parker-solar-probe thermodynamics






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Dec 30 '18 at 18:25









      Muze

      1,9421058




      1,9421058






















          1 Answer
          1






          active

          oldest

          votes


















          6














          No, it's much too slow for that. The Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes; your hand passing briefly through a flame does not.






          share|improve this answer

















          • 1




            The Parker Solar Probe is pretty fast but the Sun is huge.
            – Uwe
            Dec 30 '18 at 18:59










          • This answer is wrong as it stands. If the probe were to reach thermal equilibrium at perihelion, most of it would evaporate. It is the whole purpose of the heat shield to prevent equilibrium from happening. What's true is that this works not because of the quick movement but because of the low heat conductivity, but this is a more technical distinction.
            – leftaroundabout
            Dec 30 '18 at 20:57








          • 2




            @leftaroundabout Well. the surface of the heatshield of the Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes. Would you agree to this modification?
            – Uwe
            Dec 30 '18 at 21:01










          • @Uwe yeah, that would be more accurate, but then it doesn't really answer the question: would the probe eventually reach equilibrium (and thus be destroyed) if it stayed longer at perihelion-distance? Or does the thermal radiation it emits to the back already compensate the heat flow through the shield and thus give a pseudo-equilibrium with steady-state heat flow through the shield? I don't think so (else why would it need water-cooling), but actually I'm not sure.
            – leftaroundabout
            Dec 30 '18 at 21:10












          • @leftaroundabout This 2012 paper suggests that the heat shield does indeed reach thermal equilibrium. There's another paper with more complicated simulations, but it mostly focuses on the wind itself.
            – LegionMammal978
            Dec 31 '18 at 0:37













          Your Answer





          StackExchange.ifUsing("editor", function () {
          return StackExchange.using("mathjaxEditing", function () {
          StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
          StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
          });
          });
          }, "mathjax-editing");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "508"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: false,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          noCode: true, onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fspace.stackexchange.com%2fquestions%2f33199%2fparker-solar-probe-jumping-through-fire%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          6














          No, it's much too slow for that. The Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes; your hand passing briefly through a flame does not.






          share|improve this answer

















          • 1




            The Parker Solar Probe is pretty fast but the Sun is huge.
            – Uwe
            Dec 30 '18 at 18:59










          • This answer is wrong as it stands. If the probe were to reach thermal equilibrium at perihelion, most of it would evaporate. It is the whole purpose of the heat shield to prevent equilibrium from happening. What's true is that this works not because of the quick movement but because of the low heat conductivity, but this is a more technical distinction.
            – leftaroundabout
            Dec 30 '18 at 20:57








          • 2




            @leftaroundabout Well. the surface of the heatshield of the Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes. Would you agree to this modification?
            – Uwe
            Dec 30 '18 at 21:01










          • @Uwe yeah, that would be more accurate, but then it doesn't really answer the question: would the probe eventually reach equilibrium (and thus be destroyed) if it stayed longer at perihelion-distance? Or does the thermal radiation it emits to the back already compensate the heat flow through the shield and thus give a pseudo-equilibrium with steady-state heat flow through the shield? I don't think so (else why would it need water-cooling), but actually I'm not sure.
            – leftaroundabout
            Dec 30 '18 at 21:10












          • @leftaroundabout This 2012 paper suggests that the heat shield does indeed reach thermal equilibrium. There's another paper with more complicated simulations, but it mostly focuses on the wind itself.
            – LegionMammal978
            Dec 31 '18 at 0:37


















          6














          No, it's much too slow for that. The Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes; your hand passing briefly through a flame does not.






          share|improve this answer

















          • 1




            The Parker Solar Probe is pretty fast but the Sun is huge.
            – Uwe
            Dec 30 '18 at 18:59










          • This answer is wrong as it stands. If the probe were to reach thermal equilibrium at perihelion, most of it would evaporate. It is the whole purpose of the heat shield to prevent equilibrium from happening. What's true is that this works not because of the quick movement but because of the low heat conductivity, but this is a more technical distinction.
            – leftaroundabout
            Dec 30 '18 at 20:57








          • 2




            @leftaroundabout Well. the surface of the heatshield of the Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes. Would you agree to this modification?
            – Uwe
            Dec 30 '18 at 21:01










          • @Uwe yeah, that would be more accurate, but then it doesn't really answer the question: would the probe eventually reach equilibrium (and thus be destroyed) if it stayed longer at perihelion-distance? Or does the thermal radiation it emits to the back already compensate the heat flow through the shield and thus give a pseudo-equilibrium with steady-state heat flow through the shield? I don't think so (else why would it need water-cooling), but actually I'm not sure.
            – leftaroundabout
            Dec 30 '18 at 21:10












          • @leftaroundabout This 2012 paper suggests that the heat shield does indeed reach thermal equilibrium. There's another paper with more complicated simulations, but it mostly focuses on the wind itself.
            – LegionMammal978
            Dec 31 '18 at 0:37
















          6












          6








          6






          No, it's much too slow for that. The Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes; your hand passing briefly through a flame does not.






          share|improve this answer












          No, it's much too slow for that. The Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes; your hand passing briefly through a flame does not.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Dec 30 '18 at 18:38









          pericynthion

          8,3703149




          8,3703149








          • 1




            The Parker Solar Probe is pretty fast but the Sun is huge.
            – Uwe
            Dec 30 '18 at 18:59










          • This answer is wrong as it stands. If the probe were to reach thermal equilibrium at perihelion, most of it would evaporate. It is the whole purpose of the heat shield to prevent equilibrium from happening. What's true is that this works not because of the quick movement but because of the low heat conductivity, but this is a more technical distinction.
            – leftaroundabout
            Dec 30 '18 at 20:57








          • 2




            @leftaroundabout Well. the surface of the heatshield of the Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes. Would you agree to this modification?
            – Uwe
            Dec 30 '18 at 21:01










          • @Uwe yeah, that would be more accurate, but then it doesn't really answer the question: would the probe eventually reach equilibrium (and thus be destroyed) if it stayed longer at perihelion-distance? Or does the thermal radiation it emits to the back already compensate the heat flow through the shield and thus give a pseudo-equilibrium with steady-state heat flow through the shield? I don't think so (else why would it need water-cooling), but actually I'm not sure.
            – leftaroundabout
            Dec 30 '18 at 21:10












          • @leftaroundabout This 2012 paper suggests that the heat shield does indeed reach thermal equilibrium. There's another paper with more complicated simulations, but it mostly focuses on the wind itself.
            – LegionMammal978
            Dec 31 '18 at 0:37
















          • 1




            The Parker Solar Probe is pretty fast but the Sun is huge.
            – Uwe
            Dec 30 '18 at 18:59










          • This answer is wrong as it stands. If the probe were to reach thermal equilibrium at perihelion, most of it would evaporate. It is the whole purpose of the heat shield to prevent equilibrium from happening. What's true is that this works not because of the quick movement but because of the low heat conductivity, but this is a more technical distinction.
            – leftaroundabout
            Dec 30 '18 at 20:57








          • 2




            @leftaroundabout Well. the surface of the heatshield of the Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes. Would you agree to this modification?
            – Uwe
            Dec 30 '18 at 21:01










          • @Uwe yeah, that would be more accurate, but then it doesn't really answer the question: would the probe eventually reach equilibrium (and thus be destroyed) if it stayed longer at perihelion-distance? Or does the thermal radiation it emits to the back already compensate the heat flow through the shield and thus give a pseudo-equilibrium with steady-state heat flow through the shield? I don't think so (else why would it need water-cooling), but actually I'm not sure.
            – leftaroundabout
            Dec 30 '18 at 21:10












          • @leftaroundabout This 2012 paper suggests that the heat shield does indeed reach thermal equilibrium. There's another paper with more complicated simulations, but it mostly focuses on the wind itself.
            – LegionMammal978
            Dec 31 '18 at 0:37










          1




          1




          The Parker Solar Probe is pretty fast but the Sun is huge.
          – Uwe
          Dec 30 '18 at 18:59




          The Parker Solar Probe is pretty fast but the Sun is huge.
          – Uwe
          Dec 30 '18 at 18:59












          This answer is wrong as it stands. If the probe were to reach thermal equilibrium at perihelion, most of it would evaporate. It is the whole purpose of the heat shield to prevent equilibrium from happening. What's true is that this works not because of the quick movement but because of the low heat conductivity, but this is a more technical distinction.
          – leftaroundabout
          Dec 30 '18 at 20:57






          This answer is wrong as it stands. If the probe were to reach thermal equilibrium at perihelion, most of it would evaporate. It is the whole purpose of the heat shield to prevent equilibrium from happening. What's true is that this works not because of the quick movement but because of the low heat conductivity, but this is a more technical distinction.
          – leftaroundabout
          Dec 30 '18 at 20:57






          2




          2




          @leftaroundabout Well. the surface of the heatshield of the Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes. Would you agree to this modification?
          – Uwe
          Dec 30 '18 at 21:01




          @leftaroundabout Well. the surface of the heatshield of the Parker Solar Probe reaches (or at least approaches) thermal equilibrium on its perihelion passes. Would you agree to this modification?
          – Uwe
          Dec 30 '18 at 21:01












          @Uwe yeah, that would be more accurate, but then it doesn't really answer the question: would the probe eventually reach equilibrium (and thus be destroyed) if it stayed longer at perihelion-distance? Or does the thermal radiation it emits to the back already compensate the heat flow through the shield and thus give a pseudo-equilibrium with steady-state heat flow through the shield? I don't think so (else why would it need water-cooling), but actually I'm not sure.
          – leftaroundabout
          Dec 30 '18 at 21:10






          @Uwe yeah, that would be more accurate, but then it doesn't really answer the question: would the probe eventually reach equilibrium (and thus be destroyed) if it stayed longer at perihelion-distance? Or does the thermal radiation it emits to the back already compensate the heat flow through the shield and thus give a pseudo-equilibrium with steady-state heat flow through the shield? I don't think so (else why would it need water-cooling), but actually I'm not sure.
          – leftaroundabout
          Dec 30 '18 at 21:10














          @leftaroundabout This 2012 paper suggests that the heat shield does indeed reach thermal equilibrium. There's another paper with more complicated simulations, but it mostly focuses on the wind itself.
          – LegionMammal978
          Dec 31 '18 at 0:37






          @leftaroundabout This 2012 paper suggests that the heat shield does indeed reach thermal equilibrium. There's another paper with more complicated simulations, but it mostly focuses on the wind itself.
          – LegionMammal978
          Dec 31 '18 at 0:37




















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Space Exploration Stack Exchange!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          Use MathJax to format equations. MathJax reference.


          To learn more, see our tips on writing great answers.





          Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


          Please pay close attention to the following guidance:


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fspace.stackexchange.com%2fquestions%2f33199%2fparker-solar-probe-jumping-through-fire%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Human spaceflight

          Can not write log (Is /dev/pts mounted?) - openpty in Ubuntu-on-Windows?

          張江高科駅