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Keywords: Jets
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011106.
Paper No: FE-17-1562
Published Online: June 29, 2018
... servovalve. The cavitation-induced and vortex-induced pressure pulsations' characteristics at upstream and downstream of the turbulent jet flow path are extracted and analyzed numerically by comparing with the experimental measured pressure pulsations and noise characteristics. The numerical simulations...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011202.
Paper No: FE-17-1714
Published Online: June 27, 2018
...Jie Wu; H. D. Lim; Xiaofeng Wei; T. H. New; Y. D. Cui Supersonic jets at design Mach number of 1.45 issuing from circular 30 deg and 60 deg double-beveled nozzles have been investigated experimentally and numerically in the present study, with a view to potentially improve mixing behavior. Reynolds...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011301.
Paper No: FE-17-1721
Published Online: June 27, 2018
...M. R. Morad; H. Khosrobeygi Trajectory and penetration of elliptical liquid jets emerged into a low-speed crossflow of air are studied. The jets are introduced to the crossflow at different momentum ratios ranging from 1 to 300. The images are analyzed to obtain the trajectories of the outer...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. December 2018, 140(12): 121108.
Paper No: FE-18-1031
Published Online: June 26, 2018
... representations of reality. The twin jet water facility (TJWF) designed and built at the University of Tennessee, Knoxville was created for this purpose. The facility features twin planar-like turbulent free shear jets injecting fluid into a transparent tank to study a variety of flow behavior. The experimental...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111106.
Paper No: FE-18-1068
Published Online: June 5, 2018
...Kun Zhao; Patrick N. Okolo; Yong Wang; John Kennedy; Gareth J. Bennett This study reports an experimental investigation of two planar jets in a crossflow in a tandem arrangement. Tests were conducted in an open-jet wind tunnel facility using two-dimensional (2D)-particle imaging velocimetry (PIV...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111202.
Paper No: FE-18-1007
Published Online: May 18, 2018
... triangular and round sharp contraction jets. The results show shorter potential core length, faster growth of turbulence intensity, and faster diffusion of turbulent structures to the centerline of the triangular jets, implying enhanced mixing in the near field of these jets. On the other hand, the velocity...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. October 2018, 140(10): 101104.
Paper No: FE-17-1759
Published Online: May 7, 2018
...Zdeněk Trávníček; Zuzana Broučková A novel variant of a synthetic jet actuator (SJA) has been designed, manufactured, and tested. The novelty consists in a bio-inspired nozzle whose oscillating lip is formed by a flexible diaphragm rim. The working fluid is air, and the operating frequency is 65 Hz...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. October 2018, 140(10): 101201.
Paper No: FE-17-1577
Published Online: May 2, 2018
...Fei Huang; Shuqing Li; Yanlin Zhao; Yong Liu This paper focuses on the lateral jetting commencing points associated with the peak pressure when an arc-curved jet impacts flat, concave, convex, and inclined solid surfaces, respectively. A theoretical method based on a shock wave background is used...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. September 2018, 140(9): 091301.
Paper No: FE-17-1633
Published Online: May 2, 2018
...Numa Bertola; Hang Wang; Hubert Chanson The entrainment, breakup, and interplay of air bubbles were observed in a vertical, two-dimensional supported jet at low impact velocities. Ultra-high-speed movies were analyzed both qualitatively and quantitatively. The onset velocity of bubble entrainment...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. September 2018, 140(9): 091201.
Paper No: FE-17-1632
Published Online: April 19, 2018
...Adam Ritcey; Joseph R. McDermid; Samir Ziada The maximum impingement plate skin friction and flow field is measured for an acoustically forced planar impinging gas jet using oil film interferometry (OFI) and particle image velocimetry (PIV), respectively. The study is performed at a jet Reynolds...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. August 2018, 140(8): 081107.
Paper No: FE-17-1545
Published Online: April 10, 2018
...Avick Sinha; Rajesh O. Chauhan; Sridhar Balasubramanian The external characteristics of a superheated water jet released into water at ambient conditions are dominated by the vapor bubble formation, which results in an unsteady flow dynamics. This hinders the use of classical methods to assess...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. June 2018, 140(6): 061301.
Paper No: FE-17-1483
Published Online: January 30, 2018
...G. Chaussonnet; R. Koch; H.-J. Bauer; A. Sänger; T. Jakobs; T. Kolb A twin-fluid atomizer configuration is predicted by means of the two-dimensional (2D) weakly compressible smooth particle hydrodynamics (SPH) method and compared to experiments. The setup consists of an axial liquid jet surrounded...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2018, 140(5): 051102.
Paper No: FE-17-1223
Published Online: January 9, 2018
...Ryota Kobayashi; Koichi Nishibe; Yusuke Watabe; Kotaro Sato; Kazuhiko Yokota This paper presents a fundamental study on jet vectoring control by adjusting the dimensionless frequency of synthetic jets over time without changing the injection nozzle shape in actuators. This work involves...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. April 2018, 140(4): 041201.
Paper No: FE-17-1377
Published Online: November 16, 2017
...Mirae Kim; Hyun Dong Kim; Eunseop Yeom; Kyung Chun Kim Three-dimensional (3D) curved wall jets are a significant topic in various applications related to local heat and mass transfer. This study investigates the effects of the impinging angle and Reynolds number with a fixed distance from...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. March 2018, 140(3): 031202.
Paper No: FE-16-1755
Published Online: October 19, 2017
...Maxime Rosello; Guillaume Maîtrejean; Denis C. D. Roux; Pascal Jay; Bruno Barbet; Jean Xing In this work, the influence of nozzle shape on microfluidic ink jet breakup is investigated. First, an industrial ink used in continuous inkjet (CIJ) printing devices is selected. Ink rheological properties...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2018, 140(1): 011107.
Paper No: FE-17-1258
Published Online: October 4, 2017
...Mehran Tadjfar; Ehsan Asgari We have studied the influence of a tangential blowing jet in dynamic stall of a NACA0012 airfoil at Reynolds number of 1 × 10 6 , for active flow control (AFC) purposes. The airfoil was oscillating between angles of attack (AOA) of 5 and 25 deg about its quarter-chord...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2018, 140(1): 011202.
Paper No: FE-17-1149
Published Online: September 20, 2017
... in the Coanda effect hysteresis, although it was mentioned for the first time by Newman in 1961. This article presents results of experimental measurements for a two-dimensional incompressible plane jet by an inclined plate. The hysteresis has been observed as a different jet behavior (a free jet or a jet...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. November 2017, 139(11): 111102.
Paper No: FE-16-1611
Published Online: August 2, 2017
...Patrick Fillingham; Harikrishnan Murali; Igor V. Novosselov Wall shear stress is characterized for underexpanded axisymmetric impinging jets for the application of aerodynamic particle resuspension from a surface. Analysis of the flow field resulting from normally impinging axisymmetric jets...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. October 2017, 139(10): 101206.
Paper No: FE-17-1087
Published Online: July 21, 2017
...Seyed Sobhan Aleyasin; Mark Francis Tachie; Mikhail Koupriyanov An experimental study was conducted to investigate the effect of nozzle geometries on the statistical properties of free orifice jets at low and moderate Reynolds numbers. The studied cross sections were round, square, and ellipses...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. October 2017, 139(10): 101103.
Paper No: FE-16-1115
Published Online: July 21, 2017
...S. M. Aravindh Kumar; E. Rathakrishnan Nozzle aspect ratio effect on the mixing of Mach 2 elliptic free jet, issuing from convergent–divergent elliptic nozzles of aspect ratios 2, 3, and 4, in the presence of adverse and marginally favorable pressure gradients at the nozzle exit has been studied...