Physics, 30.07.2019 18:30 Haleysaraya1
2) approximate nusselt number for pipe flow with surface heat flux condition while using approximate integral methods, we typically start with a guess for the temperature or the velocity profile. we can use a similar approach to study the case of fully developed flow in a pipe of radius , and with a constant surface heat flux, β²β². the fluid flow solution for the hagen-poiseuille flow is known to be =β)2) suppose we guess that the temperature profile in the fully developed region can be approximated by a 2nd order polynomial of the form =ββ=+)+)2 where and are the surface and mean temperature, respectively, at location a. write down the three boundary conditions required to solve for , , and . solve for the coefficients and show that =β²β²ββ)2). (hint: you can assert both a temperature and a heat flux boundary condition at =.) b. now using a process similar to that used by the book in equations 8.50 β 8.53, solve for i. the mean fluid temperature, =β« ii. the convection coefficient, β iii. the nusselt number, how does this compare with for the exact solution?
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2) approximate nusselt number for pipe flow with surface heat flux condition while using approximate...
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