Where is the inductance analogy? An inquisitive mind wants to know.
Cheers, John
water analogy- a simple calculator
Jan 06, 2011
170 Replies
BTW, I know it is 1 degree C * second / watt. But what is the physical realization of that like the farad equivalence being 1 gram of aluminum?
BTW, I know it is 1 degree C * second / watt. But what is the physical realization of that like the farad equivalence being 1 gram of aluminum?
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Inertia due to mass. The same as an inductor applied conversely.
mike
Well, yeah. But isn't 1 gram of aluminum an inertia?
John
There isn't one. The heat equation is first order with respect to time, and all the coefficients are real-valued, so there's no opportunity for oscillatory solutions. (The Schrodinger equation is also first order in time, but it has a factor of i in it, so all the nontrivial solutions are oscillatory. Second order equations can display both sorts of behaviour.)
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I'd have to check the numbers, but I assume that at room temperature the heat capacity of 1 gram of aluminum is about 1 joule per degree K.
George H.
Well, yeah. But isn't 1 gram of aluminum an inertia?
John
Only the 1 gram part has inertia. The aluminum is a container.
mike
Thanks, Dr. Phil. I guess that's why I could not mentally picture such a thing.
Cheers, John
A turbine driving a flywheel. Or more accurately, a positive-displacement pump.
Clifford Heath.
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