C. Hah
General Electric
6 Papers
115 Citations
C. Hah is an academic researcher from General Electric. The author has contributed to research in topics: Vortex & Impeller. The author has an hindex of 5, co-authored 6 publications.
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Papers
Secondary Flows and Vortex Motion in a High-Efficiency Backswept Impeller at Design and Off-Design Conditions
TL;DR: In this article, the 3D viscous flowfield of a 4.7:1 pressure ratio backswept impeller was studied experimentally and numerically by using laser velocimetry and an advanced 3-dimensional viscous code.
69
Turbine Tip and Shroud Heat Transfer
TL;DR: In this article, a simple flow and heat transfer model incorporating these features was used to estimate both tip and shroud heat transfer provided that reasonable estimates of the clearance gap size and clearance leakage flow can be made.
68
Application of Viscous Flow Computations for the Aerodynamic Performance of a Backswept Impeller at Various Operating Conditions
TL;DR: In this paper, three-dimensional flow fields in a centrifugal impeller with backswept discharge at various operating points have been numerically investigated with a 3D viscous flow code.
40
Experimental and Numerical Investigation of Three-Dimensional Viscous Flows and Vortex Motion Inside an Annular Compressor Blade Row
H. E. Gallus,C. Hah,H. D. Schulz +2 more
TL;DR: In this paper, a detailed experimental and numerical investigation was carried out to examine the three-dimensional flow field, secondary flows and vortex motion in an annular compressor cascade, and the detailed comparison between measurement and numerical prediction indicates that the complex threedimensional flow phenomena (corner stall, vortex motion, radial mixing, etc.) is very well predicted with the numerical method.
11
Experimental and Numerical Investigation of Three-Dimensional Viscous Flows and Vortex Motion Inside an Annular Compressor Blade Row
H. E. Gallus,C. Hah,H. D. Schulz +2 more
- 11 Jun 1990
TL;DR: In this article, a detailed experimental and numerical investigation was carried out to examine the three-dimensional flow field, secondary flows and vortex motion in an annular compressor cascade, and the detailed comparison between measurement and numerical prediction indicates that the complex threedimensional flow phenomena (corner stall, vortex motion, radial mixing, etc.) is very well predicted with the numerical method.