Results 21 to 30 of about 3,560,028 (306)

Mathematical Modeling Study of Pressure Loss in the Flow Channels of Additive Manufacturing Aviation Hydraulic Valves

open access: yesEnergies, 2023
The application of additive manufacturing in the field of aviation hydraulics greatly improves the design freedom of hydraulic valve internal flow channels.
Dongfei Li   +3 more
doaj   +1 more source

A Study on a Semi-empirical Model for the Local Loss Coefficient of Small Angle Contraction Pipes [PDF]

open access: yesJournal of Applied Fluid Mechanics
The design of contraction pipes for efficient fluid transport and spraying applications requires a deep understanding of fluid dynamics and resistance characteristics.
H. Sun   +5 more
doaj   +1 more source

Flow and heat transfer of petal-shaped double tube (Water and air-water bubbly flow)

open access: yesMechanical Engineering Journal, 2016
Heat exchangers are widely used for heating, cooling, evaporation, and condensation. There are many types of heat exchangers, shell and tube, fin tube, and double tube heat exchangers.
Toshihiko SHAKOUCHI   +3 more
doaj   +1 more source

A Study on the Dynamic Loss Coefficients of Non-standard Fittings in Ship Exhaust Gas Pipes [PDF]

open access: yes한국해양공학회지, 2019
As exhaust gas systems of ships become more complicated, it is necessary to calculate an accurate pressure loss at their design stage. If the dynamic loss coefficients of non-standard fittings mainly used in exhaust gas pipe (EGP) are well-documented, it
Seongjong Park   +3 more
doaj   +1 more source

Numerical Simulation and Theoretical Analysis of Flow Resistance Characteristics in the Honeycomb Ceramic Conduit

open access: yesEnergies, 2022
In this study, three-dimensional numerical simulations were established for a honeycomb ceramic conduit, and the effects of the inlet methane volume fraction, inlet velocity, and the conduit length on the gas temperature and flow resistance in the ...
Bo Lan   +4 more
doaj   +1 more source

Conjugate Heat Transfer Investigation on Swirl-Film Cooling at the Leading Edge of a Gas Turbine Vane

open access: yesEntropy, 2019
Numerical calculation of conjugate heat transfer was carried out to study the effect of combined film and swirl cooling at the leading edge of a gas turbine vane with a cooling chamber inside.
Haifen Du   +4 more
doaj   +1 more source

Modeling Optimization of an Aviation Hydraulic Shell Pipeline for 3D Printing

open access: yesHangkong gongcheng jinzhan, 2022
The pipeline of aviation hydraulic shell intersects each other,the structure is complex,the processing is difficult,and the processing cycle is long. In order to get rid of the limitation of traditional processing methods,3D printing oriented modeling ...
WANG Junrun, FU Chunyan, WANG Hui
doaj   +1 more source

Experimental determination of parameter dependencies in the combustion process of a radiant tube burner system

open access: yesFrontiers in Energy Research
IntroductionThe EU’s environmental and energy policy has set goals for member states in increasing efficiency and effectiveness, reducing emissions, and lowering the consumption of fossil fuels as part of measures to decarbonize industry.
Augustin Varga   +4 more
doaj   +1 more source

A CFD Results-Based Approach to Investigating Acoustic Attenuation Performance and Pressure Loss of Car Perforated Tube Silencers

open access: yesApplied Sciences, 2018
This paper proposes an approach to investigating the effect of different temperatures and flow velocities on the acoustic performance of silencers in a more accurate and meticulous fashion, based on steady computational results of the flow field inside ...
Hao Zhang, Wei Fan, Li-Xin Guo
doaj   +1 more source

Nozzle contours for minimum particle-lag loss [PDF]

open access: yes, 1963
The flow of a gas-particle mixture through a rocket nozzle is analyzed under the approximation that the particle slip velocity is small compared with the average mixture velocity, using one-dimensional gasdynamics, the Stokes drag law, and corresponding ...
Marble, Frank E.
core   +1 more source

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