In this example, you are asked to make appropriate assumptions and model flow past the heat exchanger
Question:
In this example, you are asked to make appropriate assumptions and model flow past the heat exchanger tubes as shown in Figure 7.54.
A schematic diagram of a typical cross flow heat exchanger arrangement is shown in Figure 7.54. As seen, the hot working fluid from the industry is passed through tubes and the coolant is pumped from the bottom and used to cool the working fluid. In this particular heat exchanger the tubes are arranged in a staggered style.
The flow and heat transfer analysis over these tubes is very important in determining an optimal tube arrangement. Neglecting the outer wall effects carry out a heat transfer analysis at a Reynolds number of 300. Assume that the flow is laminar and the buoyancy effects are negligibly small.
Assume that the vortex shedding effects can be neglected and simplify the three-dimensional problem to a two-dimensional problem. Set up the appropriate boundary conditions, generate the mesh and carry out the analysis either using the CBSflow code or any other available software.
Step by Step Answer:
Fundamentals Of The Finite Element Method For Heat And Mass Transfer Wiley Series In Computational Mechanics
ISBN: 272391
2nd Edition
Authors: P. Nithiarasu, R. W. Lewis, K. N. Seetharamu