Results 71 to 80 of about 3,746,446 (211)

Numerical Simulation Study on Supercritical Nitrogen Jet Flow Field

Shiyou jixie, 2021
Conventional hydraulic fracturing technology faces problems such as high fracture initiation pressure and difficult packer setting in the stimulation of hot dry rock reservoirs.
Luo Yi, Huang Zhongwei, Shi Huaizhong, Xiong Chao, Yang Ruiyue, Chen Zhenliang   +5 more
doaj  

Turbulence modeling and surface heat transfer in a stagnation flow region [PDF]

Analysis for the turbulent flow field and the effect of freestream turbulence on the surface heat transfer rate of a stagnation flow is presented. The emphasis is on modeling and its augmentation of surface heat transfer rate.
Wang, Chi R., Yeh, Frederick C.
core   +1 more source

Analysis on Structural Strength and Open/Close Characteristic of CD70 High-pressure Cock Valve

Shiyou jixie, 2021
The high-pressure cock valve is an indispensable and important component connecting the high-pressure manifold during cementing and fracturing operations in oil fields.
Li Jingcui, Ming Xianggui, Li Liangliang, Yi Xianzhong, He Yuxian, Song Shunping, Yang Wenchuan   +6 more
doaj  

Large perturbation flow field analysis and simulation for supersonic inlets [PDF]

An analysis technique for simulation of supersonic mixed compression inlets with large flow field perturbations is presented. The approach is based upon a quasi-one-dimensional inviscid unsteady formulation which includes engineering models of unstart ...
Adams, J. C., Jr., Kneile, K. R., Martindale, W. R., Phares, W. J., Varner, M. O.   +4 more
core   +1 more source

3D Velocity and Density Reconstructions of the Local Universe with Cosmicflows-1

, 2011
This paper presents an analysis of the local peculiar velocity field based on the Wiener Filter reconstruction method. We used our currently available catalog of distance measurements containing 1,797 galaxies within 3000 km/s: Cosmicflows-1.
Bilicki, Courtois, Cuesta, di Nella, Fixsen, Freedman, Gottlöber, Hoffman, Hoffman, Hoffman, Hoffman, Huchra, Hélène M. Courtois, Kashlinsky, Klypin, Kocevski, Komatsu, Lavaux, Nusser, Pike, R. Brent Tully, Stefan Gottlöber, Tully, Tully, Tully, Tully, Yehuda Hoffman, Zaroubi, Zaroubi   +28 more
core   +4 more sources

Development of inverse inviscid transonic solution methods [PDF]

A numerical method suitable for the analysis and/or design of supercritical transonic airfoils is reported. In order to achieve accuracy, the method utilizes the full inviscid potential flow equations; and in order to remain simple it solves the problem ...
Carlson, L. A.
core   +1 more source

Simulation study on the flow field of guide vane and impeller of turbo expander

Energy Science & Engineering, 2019
In the face of the current energy shortage, organic Rankine cycle (ORC) technology is a way to make efficient use of energy, especially geothermal energy.
Bingcheng Liu, Shaoyi Wang, Mengmeng Zhang, Ning Liu, Chuanwei Wang, Wenguang Jia   +5 more
doaj   +1 more source

Influence of through-flow on linear pattern formation properties in binary mixture convection

, 1996
We investigate how a horizontal plane Poiseuille shear flow changes linear convection properties in binary fluid layers heated from below. The full linear field equations are solved with a shooting method for realistic top and bottom boundary conditions.
A. Bers, A. C. Newell, A. E. Deane, A. La Porta, Ch. Jung, D. Bensimon, D. Gutkowicz-Krusin, D. Gutkowicz-Krusin, D. P. Chock, E. Kaplan, E. Knobloch, E. Knobloch, E. Moses, G. W. T. Lee, G. Zimmermann, G. Zimmermann, H. B. Squire, H. Gao, H. R. Brand, H. W. Müller, H. W. Müller, H. W. Müller, H. Yahata, H. Yahata, I. Progogine, J. K. Platten, J. K. Platten, J. K. Platten, K. Lerman, M. A. Dominguez-Lerma, M. Bestehorn, M. Bestehorn, M. C. Cross, M. C. Cross, M. C. Cross, M. C. Cross, M. Liu, M. Lücke, N. D. Stein, O. Lhost, O. Lhost, P. Büchel, P. Glandsdorff, P. Huerre, P. Huerre, P. Kolodner, P. Kolodner, P. Le Gal, R. J. Briggs, R. J. Deissler, R. P. Behringer, S. Chandrasekhar, S. J. Linz, St. Hollinger, T. Clune, V. Croquette, V. Croquette, V. Steinberg, W. Barten, W. Barten, W. Hort, W. Schöpf, W. Schöpf   +62 more
core   +1 more source

Influence of Rotation Speed of Screw Pump on the Flow Field Characteristics of Oil-Water Cyclone Separation Pipe

Shiyou jixie
The cyclone separator would experience complex vibration under the action of downhole oil recovery screw pump,which has a certain impact on the internal flow field of the cyclone separator.
Zhao Lixin, Yufan, Xu Baorui, Jin Yu, Jiang Minghu, Lu Mengmei   +5 more
doaj  

Pressure Characteristics Analysis of the Deflector Jet Pilot Stage Under Dynamic Skewed Velocity Distribution

Aerospace
The velocity distribution at the deflector jet outlet significantly influences the pressure characteristics of the pilot stage, thereby affecting the dynamic performance of the servo valve.
Zhilin Cheng, Wenjun Yang, Liangcai Zeng, Lin Wu   +3 more
doaj   +1 more source