CooperDragon":3tbu8kqv said:There is an emissivity chart linked in the old thread, but here's another if you want to reference http://www-eng.lbl.gov/~dw/projects/DW4229_LHC_detector_analysis/calculations/emissivity2.pdf
The .95 default setting is pretty good for a lot of the surfaces in the tank like ceramic floor tile, glass, water, and opaque plastic but not accurate for other things. Usually close enough to get a good idea of what the temp gradients are though.
Aaradimian":k9xk3elm said:For those gas temp. readings, was it a single-element gas or air? If air, did you have to average the readings out to account for the different elements (nitrogen, oxygen, etc.) or is that not that big of a deal? I'm curious because I'm going to be taking a course on space launch & re-entry in the coming year, and of course frictional/secondary heating vs. spacecraft materials will be covered. Since atmospheric composition and density varies with altitude, I'm wondering if it'd be of value for me to read up a little on thermal emissivity of different gases ahead of time. Secondary (radiative) heating as the gases pass the airframe near the boundary layer are big deal, apparently.
kingofnobbys":3s4dpqw9 said:You'd be better placed to revise any studies you'd done on thermal physics (radiation and dynamics of conduction heat transfer) , high velocity fluid-dynamics, materials engineering (refractory and wear resistant materials), and bone up on your multivariable calculus and partial differential equations, and multivariable (MIMO) and model based control systems. If you don't have firm grip on these you are likely to find yourself out of your depth.
Aaradimian":3f3y268x said:kingofnobbys":3f3y268x said:You'd be better placed to revise any studies you'd done on thermal physics (radiation and dynamics of conduction heat transfer) , high velocity fluid-dynamics, materials engineering (refractory and wear resistant materials), and bone up on your multivariable calculus and partial differential equations, and multivariable (MIMO) and model based control systems. If you don't have firm grip on these you are likely to find yourself out of your depth.
Thanks for the suggestions! Should be a fun class...
kingofnobbys":13kbr37t said:Is it a 1 term class , or a 1 trimester class , or a 1 semester or full year class ? Undergraduate or postgraduate (ie 300, 400 (undergrad level) , or 500 or 600 (postgrad level) program by a university or a company run course ? ( In my experience that inhouse classes that typically run for a week or fortnight , (all day every day) are less rigorous in general than a full fledged university classes )
Aaradimian":p2ir6tcw said:kingofnobbys":p2ir6tcw said:Is it a 1 term class , or a 1 trimester class , or a 1 semester or full year class ? Undergraduate or postgraduate (ie 300, 400 (undergrad level) , or 500 or 600 (postgrad level) program by a university or a company run course ? ( In my experience that inhouse classes that typically run for a week or fortnight , (all day every day) are less rigorous in general than a full fledged university classes )
It's a 300-level for an undergraduate degree, so I don't anticipate having to use the heavy-duty maths in it. The pre-reqs are only Calc II and Physics I, and it's 16 weeks.
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