Evaluation of Pressure Side Film Cooling With Flow and Thermal Field Measurements—Part I: Showerhead Effects

J. Michael Cutbirth; David G. Bogard

doi:10.1115/1.1504441

Journal of Turbomachinery | Volume 124 | Issue 4 | TECHNICAL PAPERS

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TECHNICAL PAPERS

Evaluation of Pressure Side Film Cooling With Flow and Thermal Field Measurements—Part I: Showerhead Effects

J. Michael Cutbirth and David G. Bogard

[+] Author and Article Information

J. Michael Cutbirth

William B. Morgan Large Cavitation Channel, Naval Surface Warfare Center, Carderock Division, Memphis, TN 38113

David G. Bogard

Mechanical Engineering Department, University of Texas at Austin, Austin, TX 78712

J. Turbomach 124(4), 670-677 (Nov 07, 2002) (8 pages) doi:10.1115/1.1504441 History: Received November 02, 2001; Online November 07, 2002

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Figures

Flow visualization of the upstream flow field for the pressure side film cooling with I_ps=0.0 and M_sh^*=1.5

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Thermal profile of the showerhead coolant flow immediately upstream of the pressure side coolant row with M_sh^*=1.5 and x/d=−22

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Showerhead (a) mean and (b) rms profiles at x/d=−9 and −28 with M_sh^*=1.5

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Comparison of upstream coolant conditions for (a) I_ps=0.0 and M_sh^=1.5, (b) I_ps=0.2 and M_sh^=0.0, and (c) I_ps=0.2 and M_sh^*=1.5

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Laterally averaged effectiveness for the pressure side film cooling for (a) M_sh^=0.0, and (b) M_sh^=1.5

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Lateral distribution of effectiveness for the combined coolant flow and predicted superposition at x/d=−28, and (a) I_ps=0.2, and (b) I_ps=1.2

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Flow visualization of the pressure side film cooling with and without showerhead flow

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Thermal profile of the pressure side coolant jet with Tu_∞=0.5%, and x/d=−28 with M_sh^=0.0 for (a) I_ps=0.2, (b) I_ps=1.2, and M_sh^=1.5 for (c) I_ps=0.2, and (d) I_ps=1.2

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V-W velocity vectors representing the velocity field for the pressure side film cooling (PS3) at x/d=−28 for (a) M_sh^=0.0,I_ps=1.2, and M_sh^=1.5,I_ps=1.2 for (b) actual flow, and (c) embedded structure

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Turbulence levels of the pressure side film cooling with I_ps=1.2 and x/d=−28 for (a) M_sh^=0.0, and (b) M_sh^=1.5

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Cutbirth J, Bogard DG. Evaluation of Pressure Side Film Cooling With Flow and Thermal Field Measurements—Part I: Showerhead Effects. ASME. J. Turbomach. 2002;124(4):670-677. doi:10.1115/1.1504441.

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Evaluation of Pressure Side Film Cooling With Flow and Thermal Field Measurements—Part I: Showerhead Effects

References

Figures

Turbine vane test section

Film-cooling hole configuration and location of measurement plane

Flow visualization of the showerhead film cooling with z/p=7.5 and M_sh^*=1.5

Flow visualization of the upstream flow field for the pressure side film cooling with I_ps=0.0 and M_sh^*=1.5

Thermal profile of the showerhead coolant flow immediately upstream of the pressure side coolant row with M_sh^*=1.5 and x/d=−22

Showerhead (a) mean and (b) rms profiles at x/d=−9 and −28 with M_sh^*=1.5

Comparison of upstream coolant conditions for (a) I_ps=0.0 and M_sh^=1.5, (b) I_ps=0.2 and M_sh^=0.0, and (c) I_ps=0.2 and M_sh^*=1.5

Laterally averaged effectiveness for the pressure side film cooling for (a) M_sh^=0.0, and (b) M_sh^=1.5

Lateral distribution of effectiveness for the combined coolant flow and predicted superposition at x/d=−28, and (a) I_ps=0.2, and (b) I_ps=1.2

Flow visualization of the pressure side film cooling with and without showerhead flow

Thermal profile of the pressure side coolant jet with Tu_∞=0.5%, and x/d=−28 with M_sh^=0.0 for (a) I_ps=0.2, (b) I_ps=1.2, and M_sh^=1.5 for (c) I_ps=0.2, and (d) I_ps=1.2

V-W velocity vectors representing the velocity field for the pressure side film cooling (PS3) at x/d=−28 for (a) M_sh^=0.0,I_ps=1.2, and M_sh^=1.5,I_ps=1.2 for (b) actual flow, and (c) embedded structure

Turbulence levels of the pressure side film cooling with I_ps=1.2 and x/d=−28 for (a) M_sh^=0.0, and (b) M_sh^=1.5

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Evaluation of Pressure Side Film Cooling With Flow and Thermal Field Measurements—Part I: Showerhead Effects

References

Figures

Turbine vane test section

Film-cooling hole configuration and location of measurement plane

Flow visualization of the showerhead film cooling with z/p=7.5 and Msh*=1.5

Flow visualization of the upstream flow field for the pressure side film cooling with Ips=0.0 and Msh*=1.5

Thermal profile of the showerhead coolant flow immediately upstream of the pressure side coolant row with Msh*=1.5 and x/d=−22

Showerhead (a) mean and (b) rms profiles at x/d=−9 and −28 with Msh*=1.5

Comparison of upstream coolant conditions for (a) Ips=0.0 and Msh*=1.5, (b) Ips=0.2 and Msh*=0.0, and (c) Ips=0.2 and Msh*=1.5

Laterally averaged effectiveness for the pressure side film cooling for (a) Msh*=0.0, and (b) Msh*=1.5

Lateral distribution of effectiveness for the combined coolant flow and predicted superposition at x/d=−28, and (a) Ips=0.2, and (b) Ips=1.2

Flow visualization of the pressure side film cooling with and without showerhead flow

Thermal profile of the pressure side coolant jet with Tu∞=0.5%, and x/d=−28 with Msh*=0.0 for (a) Ips=0.2, (b) Ips=1.2, and Msh*=1.5 for (c) Ips=0.2, and (d) Ips=1.2

V-W velocity vectors representing the velocity field for the pressure side film cooling (PS3) at x/d=−28 for (a) Msh*=0.0,Ips=1.2, and Msh*=1.5,Ips=1.2 for (b) actual flow, and (c) embedded structure

Turbulence levels of the pressure side film cooling with Ips=1.2 and x/d=−28 for (a) Msh*=0.0, and (b) Msh*=1.5

Tables

Errata

Discussions

Related Content

Journals

Conference Proceedings

eBooks

Flow visualization of the showerhead film cooling with z/p=7.5 and M_sh^*=1.5

Flow visualization of the upstream flow field for the pressure side film cooling with I_ps=0.0 and M_sh^*=1.5

Thermal profile of the showerhead coolant flow immediately upstream of the pressure side coolant row with M_sh^*=1.5 and x/d=−22

Showerhead (a) mean and (b) rms profiles at x/d=−9 and −28 with M_sh^*=1.5

Comparison of upstream coolant conditions for (a) I_ps=0.0 and M_sh^=1.5, (b) I_ps=0.2 and M_sh^=0.0, and (c) I_ps=0.2 and M_sh^*=1.5

Laterally averaged effectiveness for the pressure side film cooling for (a) M_sh^=0.0, and (b) M_sh^=1.5

Lateral distribution of effectiveness for the combined coolant flow and predicted superposition at x/d=−28, and (a) I_ps=0.2, and (b) I_ps=1.2

Thermal profile of the pressure side coolant jet with Tu_∞=0.5%, and x/d=−28 with M_sh^=0.0 for (a) I_ps=0.2, (b) I_ps=1.2, and M_sh^=1.5 for (c) I_ps=0.2, and (d) I_ps=1.2

V-W velocity vectors representing the velocity field for the pressure side film cooling (PS3) at x/d=−28 for (a) M_sh^=0.0,I_ps=1.2, and M_sh^=1.5,I_ps=1.2 for (b) actual flow, and (c) embedded structure

Turbulence levels of the pressure side film cooling with I_ps=1.2 and x/d=−28 for (a) M_sh^=0.0, and (b) M_sh^=1.5