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Greenland ice cores show industrial record of acid rain, success of U.S. Clean Air Act
Greenland ice cores industrial record of acid rain success of U.S. Clean Air Act
2014/4/16
The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2014, its budg...
Experiments of effects of inlet-air distortion on aerodynamic performance in transonic
plugboard simulator inlet-air distortion transonic axial-flow compressor shock wave disturbance
2014/5/19
The inlet-air distortion which was caused by high angle-of-attack flight was simulated by plugboard.Experiments were conducted on a transonic axial-flow compressor's rotor at 98% rotating speed.The fl...
Air-water exchange and vertical profiles of organic carbon in a subarctic fjord
Air-water exchange vertical profiles organic carbon subarctic fjord
2014/4/17
In this article, we examine the air-sea exchange of exchangeable organic carbon (OC) as well as the internal pools and sources within a subarctic fjord. Air-water fluxes of OC ranged from an uptake of...
Research of air-cushion isolation effects on high arch dam reservoir
Air-cushion Gas-liquid-solid multi-field coupling Contraction (transverse) joint Hydrodynamic pressure Wenchuan Earthquake
2012/2/29
A three-dimensional (3D) finite element model of air-cushion isolated arch dam is presented with the nonlinear gas-liquid-solid multi-field dynamic coupling effect taken into account. In this model, t...
The Numerical Solution of Interacting Air Jets Problem for Low Reynolds Numbers
Air jets jets interaction impinging jets wall jets Crank-Nicholson method
2009/10/15
The problem of interaction of jets is one of the interesting research subjects in the engineering applications. In this work,the two dimensional flow field resulting from the interaction of two jets p...
A CFD ANALYSIS OF ROOM ASPECT RATIO ON THE EFFECT OF BUOYANCY AND ROOM AIR FLOW
aspect ratio room airflow buoyancy comfort
2009/10/14
Comfort conditions in air-conditioned rooms require that temperature in the occupied zone should not vary by more than 1 °C and velocity, every where in the room, should be less than 0.15 m/s so that ...
Estimation of Uncertainty of Air Buoyancy Correction for Establishment of Primary Mass Standards
air density air buoyancy correction primary mass standard
2009/10/14
The most accurate value of air density is obtained by a calculation based on the equation using measured atmospheric parameters approved by the International Committee for Weights and Measures in 1981...
LAMINAR AIR FLOW FREE CONVECTIVE HEAT TRANSFER INSIDE A VERTICAL CIRCULAR PIPE WITH DIFFERENT INLET CONFIGURATIONS
laminar flow free convective heat transfer vertical pipe
2009/10/14
Free convection heat transfer has been experimentally investigated for laminar air flow in a vertical circular pipe by using the boundary condition of constant wall heat flux in the ranges of RaL from...
Air flow through an ejector with annular supersonic nozzle
Ejector annular nozzle supersonic flow copper
2010/3/15
During development of the continuous production of copper dried concentrate and fluxes were injected through the top-blowing lance into the molten bath. The properties of the equipment designed were d...