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How to patch/generate the Vaccuum in a fluid domain

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Old   October 12, 2018, 05:19
Arrow How to patch/generate the Vaccuum in a fluid domain
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In the IR detector vacuumed dewars, the IR detectors are to be cool down upto cryogenic temperature for their better sensitivity. The IR detector is mounted on cold finger tip. The cold finger is continuously produced cooling @77k and remove 0.5W combined heat load of IR sensor and dewar. I am trying to model this Heat transfer analysis in ANSYS Fluent. But I have an issue of generating/patching the Vacuum 0f 10-10 torr for the domain shown in figure. My question is:
How to patch/generate this vacuum in the domain shown in the figure?
hashtag#Vacuum hashtag#HeatTransfer hashtag#FLUENT hashtag#IRDetector hashtag#Radiation hashtag#cryogenictemperatur hashtag#heatlifting[IMG]

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