Convective Heat Transfer

Tuncer Cebeci

## Instructions for Example 6.6

Instructions for calculating momentum and heat transfer in laminar and turbulent flows with computer programs discussed in Section 11.9

1. Generate an elliptic geometry and external velocity distribution by running PC executable file elliptic.exe (source program elliptic.for).
   Save results in thwaites_a1_inp.txt for a Reynolds number of 106.
   Save results in thwaites_b1_inp.txt for a Reynolds number of 107.
2. Compile thwaites.for to generate PC executable file thwaites.exe.
   Execute thwaites.exe with input file thwaites_a1_inp.txt and thwaites_b1_inp.txt and save outputs into files thwaites_a1_out.txt and thwaites_b1_out.txt, respectively.
3. Compile smith_spalding.for to generate PC executable file smith_spalding.exe.
   Execute smith_spalding.exe with input files thwaites_a1_inp.txt and thwaites_b1_inp.txt and save outputs into files smith_spald_a1_out.txt and smith_spald_b1_out.txt, respectively.
4. Compile michel.for (Michel's method) and run PC executable file michel.exe to find transition location.

1. For 106 Reynolds number, transition occurs at NX=74 and XCTR= 0.83066. The calculations also generate input file (head_a1_inp.txt) for Head's method.
2. For 107 Reynolds number, transition occurs at NX=58 and XCTR= 0.60907. The calculations also generate input file (head_b1_inp.txt) for Head's method.

5. Compile head.for (Head's method) and generate PC executable file head.exe.

1. Execute Head's method head.exe for turbulent flow calculations with input file head_a1_inp.txt and save results into head_a1_out.txt for a Reynolds number of 106.
2. Execute Head's method head.exe with input file head_b1_inp.txt and save results into head_b1_out.txt for a Reynolds number of 106.

6. Compile ambrok.for and generate PC executable file ambrok.exe

1. Edit head_a1_inp.txt, add Pr, TW, TE and Cf in it and save it as ambrok_a1_inp.txt. Then execute ambrok.exe to finish the turbulent flow calculations with input file ambrok_a1_inp.txt. and save results into ambrok_a1_out.txt
2. Edit head_b1_inp.txt, add Pr, TW, TE and Cf in it and save it as ambrok_b1_inp.txt. Then execute ambrok.exe to finish turbulent flow calculations with input file ambrok_b1_inp.txt. and save results into ambrok_b1_out.txt

7. Summarize results for Reynold numbers 106 and 107. The summary results are saved in summary_a.pdf and summary_b.bdf, respectively

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