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Keywords: laminar to turbulent transitions
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Journal Articles
Journal Articles
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
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2009, 131(2): 021006.
Published Online: January 22, 2009
... 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 In Fig. 6 , the peak value of rms velocity perturbation has been plotted for all the data against a wake...
Journal Articles
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
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2008, 130(2): 021006.
Published Online: February 12, 2008
... to turbulent transitions 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 with attached-flow boundary-layer transition, is a viscous...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2007, 129(4): 750–755.
Published Online: August 18, 2006
... observations. The current work therefore provides a basis for the modeling of transition on concave surfaces. 13 07 2006 18 08 2006 plates (structures) vortices boundary layers laminar flow blades friction laminar to turbulent transitions gas turbines Traditional transition...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2007, 129(4): 705–712.
Published Online: July 31, 2006
... inlet m time-averaged quantity max local maximum value min local minimum value p perturbation (time-average subtracted) Mayle , R. E. , 1991 , “ The Role of Laminar-Turbulent Transition in Gas Turbine Engines ,” ASME J. Turbomach. 0889-504X...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2007, 129(3): 628–635.
Published Online: July 27, 2006
.... The aim of this work was to study the accuracy of this turbulent potential model for predictions in nonequilibrium turbulent flows. Laminar to turbulent transition in wall-bounded flows is a situation where nonequilibrium turbulence prevails. A prevalidation of the turbulent potential model was done...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2007, 129(3): 512–517.
Published Online: July 25, 2006
... Conditions ,” ASME J. Fluids Eng. 0098-2202 10.1115/1.1881699 , 127 , pp. 400 – 403 . Mayle , R. E. , 1991 , “ The Role of Laminar-Turbulent Transition in Gas Turbine Engines ,” ASME J. Turbomach. 0889-504X , 113 , pp. 509 – 537 . Walsh , E. J. , and Davies , M. R. D...
Journal Articles
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
Journal Articles
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
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
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
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
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 35–42.
Published Online: February 9, 2005
... flows bubbles rotational flow laminar to turbulent transitions flow instability wakes boundary layers flow separation wind tunnels The aerodynamic performance of turbomachinery blades operating at Reynolds numbers of less than one million is dependent on the transition modes occurring...
Journal Articles
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
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. October 2006, 128(4): 689–698.
Published Online: February 1, 2005
... 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 Figure 4 shows the sample signals of U , V , and T acquired...
Journal Articles