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Keywords: laminar to turbulent transitions
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Journal Articles
Predicting Separation and Transitional Flow in Turbine Blades at Low Reynolds Numbers—Part II: The Application to a Highly Separated Turbine Blade Cascade Geometry
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2011, 133(3): 031012.
Published Online: November 15, 2010
... effects on more complex geometries. 13 08 2009 16 10 2009 15 11 2010 15 11 2010 blades boundary layers computational fluid dynamics flow separation flow simulation geometry laminar to turbulent transitions turbines turbulence The flowfield found in low pressure...
Journal Articles
Observations of Transition Phenomena on a Controlled Diffusion Compressor Stator With a Circular Arc Leading Edge
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2010, 132(3): 031002.
Published Online: March 24, 2010
...Alan D. Henderson; Gregory J. Walker Laminar-turbulent transition behavior is studied near the leading edge of an outlet stator blade in a low-speed 1.5-stage axial-flow research compressor. The stator is a typical controlled diffusion design with a circular arc leading edge profile. Slow-response...
Journal Articles
On the Response of a Strongly Diffusing Flow to Propagating Wakes
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2009, 131(2): 021006.
Published Online: January 22, 2009
... flow separation gas turbines heat transfer jets laminar to turbulent transitions plates (structures) rods (structures) wakes wind tunnels 08 06 2007 28 06 2007 22 01 2009 rms velocity perturbation, u ′ , and intermittency, γ , for a turbulent patch...
Journal Articles
Unsteady Transition Phenomena at a Compressor Blade Leading Edge
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2008, 130(2): 021013.
Published Online: March 21, 2008
...Alan D. Henderson; Gregory J. Walker; Jeremy D. Hughes Wake-induced laminar-turbulent transition is studied at the leading edge of a C4-section compressor stator blade in a 1.5-stage axial compressor. Surface hot-film sensor observations are interpreted with the aid of numerical solutions from...
Journal Articles
Boundary Layer Transition on the High Lift T106A Low-Pressure Turbine Blade With an Oscillating Downstream Pressure Field
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2008, 130(2): 021009.
Published Online: February 29, 2008
... position of time ( t ∕ τ 0 = 0.0 ) has been presented. A ratio of 1:1.5 is similar to that found in many LP turbines. 27 06 2006 15 01 2007 29 02 2008 boundary layer turbulence laminar to turbulent transitions gas turbines blades laser Doppler anemometry...
Journal Articles
Numerical Study of Instability Mechanisms Leading to Transition in Separation Bubbles
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2008, 130(2): 021006.
Published Online: February 12, 2008
... not affect the flow field within and immediately downstream of the separation bubble. The process of laminar-to-turbulent transition in a separation bubble shares characteristics with both attached boundary layers and free shear layers. The Tollmien-Schlichting (T-S) instability, typically associated...
Journal Articles
Predicting Transition on Concave Surfaces
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2007, 129(4): 750–755.
Published Online: August 18, 2006
... 10.1115/1.1861914 , 127 , p. 507 . Mayle , R. E. , 1991 , “ The Role of Laminar-Turbulent Transition in Gas Turbine Engines ,” ASME J. Turbomach. 0889-504X , 113 , p. 509 . Johnson , M. W. , and Ercan , A. H. , 1999 , “ A Physical Model for Bypass Transition ,” Int. J...
Journal Articles
The Effect of Wake Induced Structures on Compressor Boundary-Layers
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2007, 129(4): 705–712.
Published Online: July 31, 2006
... ) 31 07 2006 31 07 2006 compressors boundary layer turbulence laminar to turbulent transitions flow visualisation computational fluid dynamics wakes blades Current compressor design-tools are commonly based on studies of the flow within cascades, where the incoming flow...
Journal Articles
Application of the Turbulent Potential Model to Heat Transfer Predictions on a Turbine Guide Vane
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2007, 129(3): 628–635.
Published Online: July 27, 2006
.... 10 – 17 . Steelant , J. and Dick , E. , 2001 , “ Modeling of Laminar-Turbulent Transition for High Freestream Turbulence ,” J. Fluids Eng. 0098-2202 10.1115/1.1340623 , 123 , pp. 22 – 30 . Menter , F. R. , Langtry , R. B. , Likki , S. R. , Suzen , Y. B...
Journal Articles
Predicting Entropy Generation Rates in Transitional Boundary Layers Based on Intermittency
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2007, 129(3): 512–517.
Published Online: July 25, 2006
... requires that sources of loss be better understood. Entropy generation minimization (EGM) is a method of thermodynamic optimization of real systems that owe their thermodynamic imperfections to heat transfer, fluid flow, and mass transfer irreversibilities ( 1 ). laminar to turbulent transitions...
Journal Articles
Large Eddy Simulation of Transitional Boundary Layers at High Free-Stream Turbulence Intensity and Implications for RANS Modeling
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. April 2007, 129(2): 311–317.
Published Online: July 14, 2006
... turbulence turbines blades laminar to turbulent transitions Bypass transition from the laminar to the turbulent state occurs when the linear growth of Tollmien–Schlichting waves, preceding natural transition, is bypassed by the penetration of disturbances into the boundary layer from a highly...
Journal Articles
A Computational Fluid Dynamics Study of Transitional Flows in Low-Pressure Turbines Under a Wide Range of Operating Conditions
Available to PurchaseY. B. Suzen, P. G. Huang, D. E. Ashpis, R. J. Volino, T. C. Corke, F. O. Thomas, J. Huang, J. P. Lake, P. I. King
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2007, 129(3): 527–541.
Published Online: February 13, 2006
... of transition Mayle , R. E. , 1991 , “ The Role of Laminar-Turbulent Transition in Gas Turbine Engines ,” ASME J. Turbomach. 0889-504X , 113 , pp. 509 – 537 . Rivir , R. B. , 1996 , “ Transition on Turbine Blades and Cascades at Low Reynolds Numbers ,” AIAA Paper No. 96–2079...
Journal Articles
On the Three-Dimensional Structure of Turbulent Spots
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2005, 127(3): 545–551.
Published Online: July 1, 2005
... laminar to turbulent transitions boundary layer turbulence flow measurement heat transfer friction It has been well known that boundary layer transition from laminar to turbulent flows starts by the random formation of localized turbulent regions known as “turbulent spots.” These turbulent...
Journal Articles
The Unsteady Development of a Turbulent Wake Through a Downstream Low-Pressure Turbine Blade Passage
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. April 2005, 127(2): 388–394.
Published Online: May 5, 2005
... laser Doppler anemometry laminar to turbulent transitions The unsteady flow field in low-pressure (LP) turbines is governed by a
combination of potential and convective interactions 1 . Of these, the convected wakes from upstream blade rows play the most...
Journal Articles
A Comparative Study of Two Transition Zone Models in Heat Transfer Predictions
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 230–239.
Published Online: February 9, 2005
...P. M. Byvaltsev, Researcher,; K. Kawaike, Chief Researcher, A comparative study of two transition zone models was carried out to assess their ability to simulate boundary layer laminar-turbulent transition. Transition modeling is based on the use of an algebraic equation for the intermittency...
Journal Articles
Surface Roughness Effects on External Heat Transfer of a HP Turbine Vane
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 200–208.
Published Online: February 9, 2005
... quantifying their combined effect on heat transfer and laminar-turbulent transition. In complementary studies a trip wire is used on the suction side in order to fix the transition location close to the stagnation point, thereby allowing a deeper insight into the effect of roughness on the turbulent boundary...
Journal Articles
Response of a Laminar Separation Bubble to an Impinging Wake
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 35–42.
Published Online: February 9, 2005
... reattachment region are well represented by Narasimha’s universal intermittency distribution, lending support to the use of intermittency-based predictive routines in calculations of blade boundary layers. Mayle , R. E. , 1991 , “ The Role of Laminar-Turbulent Transition in Gas Turbines ,” ASME J...
Journal Articles
Computational Fluid Dynamics Study of Wake-Induced Transition on a Compressor-Like Flat Plate
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 52–63.
Published Online: February 9, 2005
... , “ Modeling of Flow Transition Using an Intermittency Transport Equation ,” ASME J. Fluids Eng. , 122 , pp. 273 – 284 . Steelant , J. , and Dick , E. , 2001 , “ Modeling of Laminar-Turbulent Transition for High Freestream Turbulence ,” ASME J. Fluids Eng. , 123 , pp. 22 – 30...
Journal Articles
On the Momentum and Thermal Structures of Turbulent Spots in a Favorable Pressure Gradient
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. October 2006, 128(4): 689–698.
Published Online: February 1, 2005
... from the thermal boundary layer is longer than that from the momentum boundary layer at favorable pressure gradients (FPG); and the opposite is true at adverse pressure gradients. boundary layer turbulence gas turbines blades laminar to turbulent transitions heat transfer Ensemble...
Journal Articles
Separation and Transition Control on an Aft-Loaded Ultra-High-Lift LP Turbine Blade at Low Reynolds Numbers: Low-Speed Investigation
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2006, 128(3): 517–527.
Published Online: February 1, 2005
...Xue Feng Zhang; Maria Vera; Howard Hodson; Neil Harvey An experimental study was conducted to improve the performance of an aft-loaded ultra-high-lift low-pressure turbine blade known as U2 at low Reynolds numbers. This was achieved by manipulation of the laminar-turbulent transition process...
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