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Jason Bitting

Senior Advisor

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experience

Senior Advisor  
Albemarle Corporation, June 1998 to Present, Charlotte, North Carolina United States
(Speciality Chemical)


education

Louisiana State Univ  
Doctor of Philosophy, Mechanical Engineering, Jan, 2009 to Present


Louisiana State Univ  
Master Of Science, Mechanical Engineering, Jun, 1996 to Dec, 1998


Louisiana State Univ  
Bachelor of Engineering, Mechanical Engineer, Aug, 1992 to May, 1996
Summa Cum Laude, University Medal Award

Certifications

  • Professional Engineer Mechanical Engineering
    Louisiana Professional Engineering and Land Surveying Board (33577)
    December 2007
  • Certified Maintenance and Reliability Professional
    Society of Maintenance and Reliability Professionals (102820)
    October 2009
  • Certified Reliability Leader
    Association of Asset Management Professionals (151382)
    August 2017
  • Professional Engineer Mechanical Engineering
    North Carolina Board of Examiners (048514)
    April 2019

publications

Comparisons between circular and square coaxial jet flows     
Published by (AIAA)
Authors: Dimitris Nikitopoulos, Jason Bitting, Sivaram Gogineni.  Published January 10, 2000

Structure of square coaxial nozzle flows     
Published by (AIAA)
Authors: Jason Bitting, Dimitris Nikitopoulos, Ephraim Gutmark, Sivaram Gogineni.  Published June 15, 1998

Experimental Study of Non-Circular Coaxial Jet Flow     
Published by (Louisiana State University)
Authors: Jason Bitting.  Published May 01, 1998

Comparisons of Initially Turbulent, Low-Velocity-Ratio Circular and Square Coaxial Jets     
Published by (AIAA)
Authors: Dimitris Nikitopoulos, Jason Bitting, Sivaram Gogineni.  Published January 01, 2003

Visualization and two-color DPIV measurements of flows in circular and square coaxial nozzles     
Published by (Experiments in Fluids)
Authors: Jason Bitting, Dimitris Nikitopoulos, Sivaram Gogineni, Ephraim Gutmark.  Published July 01, 2001

High-resolution, reactive Mie scattering laser-sheet visualizations, two-color digital particle image velocimetry (DPIV) and thermal anemometry measurements in flows generated by equivalent coaxial circular and square jets are presented. Visualization results were obtained for three square, coaxial configurations, and a reference circular coaxial nozzle, at two Reynolds numbers of the outer jet (19,000 and 29,000) and for inner-to-outer jet velocity ratios of 0.15, 0.22, and 0.3. These indicated that the internal unmixed region diminished with decreasing velocity ratio. Strong evidence of unsteady recirculation and back-flow was observed at the end of the core of the inner jet, for the low velocity ratios. Comparisons between circular and square jet configurations indicated considerable mixing enhancement when square nozzles were used. Low-coherence, organized large-scale structure was evident from the visualizations and DPIV measurements near the origin of the inner mixing-region shear layers, and more so in the core region of the near field. These observations were confirmed by velocity spectra, which displayed peaks corresponding to a free shear-layer instability mode in the inner mixing-region shear layers, and a wake-type mode in the core region where the mean flow has a wake-like character. Although some large-scale structure was observed in the outer mixing layer during the visualizations, this was found to be incoherent on the basis of the DPIV measurements and the velocity spectra. It is noted that no axis-switching phenomena were observed in the square nozzle flows examined here. This is attributed to the absence of an organized structure in the outer shear layer, which was initially highly turbulent, and the weakly coherent nature of the organized structure observed in the inner mixing-region near field.

Visualization of Non-Circular, Coaxial Nozzle Flow Structure     
Published by (American Physical Society)
Authors: Jason Bitting, Dimitris Nikitopoulos, Sivaram Gogineni, Ephraim Gutmark.  Published November 23, 1997

A Study of Square and Circular Coaxial Jet Flows     
Published by (American Physical Society)
Authors: Dimitris Nikitopoulos, Jason Bitting, Ephraim Gutmark, Sivaram Gogineni.  Published November 23, 1997

Visualization and Two-Color DPIV Measurements of Flows in Circular and Square Coaxial Nozzles     
Published by (ASME)
Authors: Jason Bitting, Dimitris Nikitopoulos, Sivaram Gogineni, Ephraim Gutmark.  Published June 21, 1998

DESIGN, CHARACTERIZATION, AND VERIFICATION OF A CLOSED LOOP WIND TUNNEL WITH LINEAR CASCADE AND UPSTREAM WAKE GENERATOR     
Published by (ASME)
Authors: Carlos Gonzales, Guillaume Bidan, Jason Bitting, Christopher Foreman.  Published 

A new cascade wind tunnel has been designed and constructed at the LSU Wind Tunnel Laboratory. The objective was to develop a versatile test facility, suitable for a wide range of experimental studies and measurements on turbine airfoils, especially with regards to film-cooling incorporating realistic unsteady effects due to passing wakes. The test section consists of a four passage linear cascade composed of three full blades and two shaped wall blades. The 2D blade shape profile of the cascade is a high-lift, low-pressure turbine L1A profile provided by the US Air Force Research Laboratories (AFRL), with a 152-mm chord. The Reynolds number based on the chord length at the nominal freestream velocity of 50 ms-1 is 500,000. A conveyor-based system was designed and fabricated to simulate the passing wakes of the upstream vanes (or blades) on the test blades (or vanes) depending on which airfoil types are put on the stationary frame and the moving frame of the conveyor. The original implementation used blade profiles on the stationary frame and thick plate wake generators on the translating frame. Results are presented from hot-wire surveys conducted to characterize and qualify the velocity and turbulence intensity distributions and associated spectral characteristics at the cascade test section inlet, in the wake of the vanes and in the wake of the test blade. A blade instrumented with 123 pressure taps was used to acquire static pressure profiles of the cascade central blade, which were compared to the ones from the nominal airfoil design as well as to those obtained from a RANS simulation of the cascade flow. Incoming velocity and temperature profiles were found to be uniform to within a few percentage points, and the pressure coefficient distribution was found to be in good agreement with design values. The passage periodicity of the conveyor-belt-driven, flat-plates was verified and their wake was characterized at phase locked positions. These results verified that the cascade wind tunnel operates according to design, thus proving to be a reliable test bed for film cooling studies with and without unsteady wake effects. The design also incorporates an in-house-designed, miniature periscopic and adjustable LASER sheet generating system integrated within the “dummy” blades to enable Particle Image Velocimetry measurements in the intra-blade domain. RANS and LES models of the cascade test section were also developed for comparisons. Preliminary PIV and LES results are presented.