Journal of Fluids Engineering: Recent submissions

Now showing items 1001-1020 of 9024

    • A Generalized Reduced-Order Dynamic Model for Two-Phase Flow in Pipes 

      Chaari, Majdi; Fekih, Afef; Seibi, Abdennour C.; Ben Hmida, Jalel (American Society of Mechanical Engineers (ASME), 2019)
      Real-time monitoring of pressure and flow in multiphase flow applications is a critical problem given its economic and safety impacts. Using physics-based models has long been computationally expensive due to the ...

    • Numerical and Experimental Evaluation of Sloshing Wave Force Caused by Dynamic Loads in Liquid Tanks 

      Kabiri, Mohammad Mahdi; Nikoomanesh, Mohammad Reza; Danesh, Pouya Nouraei; Goudarzi, Mohammad Ali (American Society of Mechanical Engineers (ASME), 2019)
      Proper evaluation of forces exerted on a solid boundary by liquid sloshing is difficult. If the free board in a liquid storage tank is insufficient, the sloshing waves caused by seismic excitation will collide with the ...

    • Experimental Assessment of Water Hammer-Induced Column Separation in Oil-Hydraulic Pipe Flow 

      Jansson, Marcus; Andersson, Magnus; Pettersson, Maria; Karlsson, Matts (American Society of Mechanical Engineers (ASME), 2019)
      Cavitation erosion through water hammer and column separation is a major concern in hydraulic applications such as percussive rock drilling. Cavitation aspects must be considered both in early and late design stages, which ...

    • Investigation of Transition Delay by Dynamic Surface Deformation 

      Rizzetta, Donald P.; Visbal, Miguel R. (American Society of Mechanical Engineers (ASME), 2019)
      Numerical calculations were carried out to investigate control of transition on a flat plate by means of local dynamic surface deformation. The configuration and flow conditions are similar to a previous computation which ...

    • Experimental Study of Flow Structure Characteristics for a T-Junction Duct With Horizontal Vanes 

      Li, Shicong; Wang, Xiaoyu; He, Jing; Lin, Mei; Ke, Hanbing (American Society of Mechanical Engineers (ASME), 2019)
      An experimental study is carried out to investigate the flow characteristics of the trailing edge of the horizontal vanes mounted at the branch entrance of a T-junction duct by means of particle image velocimetry (PIV). ...

    • Calibration and Validation of Hydrodynamics and Salinity Transport Model for Sabine Lake Water System 

      Wang, Hairui; Zhang, Ning (American Society of Mechanical Engineers (ASME), 2019)
      In this study, a hydrodynamic and a salinity transport models were developed for simulations of Sabine Lake water system located on the Texas-Louisiana border. The target simulation area includes several major water bodies, ...

    • Comparison of DDES and URANS for Unsteady Tip Leakage Flow in an Axial Compressor Rotor 

      Liu, Yangwei; Zhong, Luyang; Lu, Lipeng (American Society of Mechanical Engineers (ASME), 2019)
      Tip leakage vortex (TLV) has a large impact on compressor performance and should be accurately predicted by computational fluid dynamics (CFD) methods. New approaches of turbulence modeling, such as delayed detached eddy ...

    • Contributions of Tip Leakage and Inlet Diffusion on Inducer Backflow 

      Fanning, D. Tate; Gorrell, Steven E.; Maynes, Daniel; Oliphant, Kerry (American Society of Mechanical Engineers (ASME), 2019)
      Inducers are used as a first stage in pumps to minimize cavitation and allow the pump to operate at lower inlet head conditions. Inlet flow recirculation or backflow in the inducer occurs at low flow conditions and can ...

    • Experimental Validation of Existing Numerical Models for the Interaction of Fluid Transients With In-Line Air Pockets 

      Alexander, Jane; Lee, Pedro J.; Davidson, Mark; Duan, Huan-Feng; Li, Zhao; Murch, Ross; Meniconi, Silvia; Brunone, Bruno (American Society of Mechanical Engineers (ASME), 2019)
      Entrapped air in pipeline systems can compromise the operation of the system by blocking flow and raising pumping costs. Fluid transients are a potential tool for characterizing entrapped air pockets, and a numerical model ...

    • The Design and Validation of a Thermal Boundary Layer Wall Plate 

      Biles, Drummond; Ebadi, Alireza; Allard, Michael P.; White, Christopher M. (American Society of Mechanical Engineers (ASME), 2019)
      A feedback controlled thermal wall plate designed to investigate thermal boundary layer flows is described and validated. The unique capabilities of the design are the ability to modify the thermal boundary conditions in ...

    • A Polytropic Approximation of Compressible Flow in Pipes With Friction 

      Kirkland, William M. (American Society of Mechanical Engineers (ASME), 2019)
      This paper demonstrates the usefulness of treating subsonic Fanno flow (adiabatic flow, with friction, of a perfect gas in a constant-area pipe) as a polytropic process. It is shown that the polytropic model allows an ...

    • Implementing Artificial Intelligence in Predicting Metrics for Characterizing Laser Propagation in Atmospheric Turbulence 

      Lozano Jimenez, Diego Alberto; Kotteda, V. M.Krushnarao; Kumar, Vinod; Gudimetla, V. S. Rao (American Society of Mechanical Engineers (ASME), 2019)
      The effects of a laser beam propagating through atmospheric turbulence are investigated using the phase screen approach. Turbulence effects are modeled by the Kolmogorov description of the energy cascade theory, and outer ...

    • Optimization of Piecewise Conical Nozzles: Theory and Application 

      Hasselmann, Karsten; aus der Wiesche, Stefan; Kenig, Eugeny Y. (American Society of Mechanical Engineers (ASME), 2019)
      An optimization study based on computational fluid dynamics (CFD) in combination with Stratford's analytical separation criterion was developed for the design of piecewise conical contraction zones and nozzles. The risk ...

    • Experimental Study of Aerodynamics and Wingtip Vortex of a Rectangular Wing in Flat Ground Effect 

      Lu, A.; Tremblay-Dionne, V.; Lee, T. (American Society of Mechanical Engineers (ASME), 2019)
      The ground effect on the aerodynamics and tip vortex flow of a rectangular wing is investigated experimentally at Re = 2.71 × 105. The results show that there is a large lift increase with reducing ground distance. By ...

    • Numerical Study of Solid Particle Erosion in a Centrifugal Pump for Liquid–Solid Flow 

      Lai, Fen; Wang, Yu; EI-Shahat, Saeed A.; Li, Guojun; Zhu, Xiangyuan (American Society of Mechanical Engineers (ASME), 2019)
      Solid particle erosion is a serious issue in centrifugal pumps that may result in economic losses. Erosion prediction in centrifugal pump is complex because the flow field inside it is three-dimensional (3D) unsteady and ...

    • Sweeping Jets Issuing From the Face of a Backward-Facing Step 

      Bohan, Brian T.; Polanka, Marc D.; Rutledge, James L. (American Society of Mechanical Engineers (ASME), 2019)
      This study quantified the performance and fluid disbursal capabilities of several fluidic oscillator variations injecting from the face of a backward-facing step. These devices were designed as a replacement for a pair of ...

    • Flow Transitions for Flow Through a Pipe With a Twisted Tape Insert 

      Chaware, Parag; Sewatkar, C. M. (American Society of Mechanical Engineers (ASME), 2019)
      Insertion of twisted tape in a pipe provides heat transfer augmentation due to swirl formation inside the pipe. Understanding of the transitions of such a swirling flow is an important fluid flow problem. This problem has ...

    • Determination of the Drop Size During Air-Blast Atomization 

      Lee, T.-W.; Park, J. E. (American Society of Mechanical Engineers (ASME), 2019)
      We have used the integral form of the conservation equations, to find a cubic formula for the drop size during in liquid sprays in coflow of air (air-blast atomization). Similar to our previous work, the energy balance ...

    • Investigating the Effect of the Closure in Partially-Averaged Navier–Stokes Equations 

      Pereira, Filipe S.; Eça, Luís; Vaz, Guilherme (American Society of Mechanical Engineers (ASME), 2019)
      The importance of the turbulence closure to the modeling accuracy of the partially-averaged Navier–Stokes equations (PANS) is investigated in prediction of the flow around a circular cylinder at Reynolds number of 3900. A ...

    • In Memoriam of Dr. Malcolm J. Andrews (1958–2019) 

      Katz, Joseph; Battaglia, Francine (The American Society of Mechanical Engineers (ASME), 2019)