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Stress Sensitivity Characterization of Threshold Pressure Gradient in Low Permeability Reservoir
Threshold pressure gradient is a key parameter in when studying the flow mechanism of low permeability oil and gas reservoirs, and it’s an important...
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Multi-effect analysis of nanofluid flow in stenosed arteries with variable pressure gradient: analytical study
This study advances the understanding of nanofluid behaviour within stenosed arteries, highlighting the importance of considering multifaceted...
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A Comparative Study of Real-Time Pore Pressure Gradient Determination by Various Methods (A Case Study)
Determining formation or pore pressure gradient is crucial during drilling, particularly in locations where abnormally high pore pressure can cause...
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Modeling and analysis of the effect of strain gradient to design diaphragm for pressure sensing application through finite element analysis
Capacitive and optical-based pressure sensors are considered for wide application in industries and R&D labs due to their superior performance. In...
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Percolation Capacity in Deep and Ancient Karst Gas Reservoirs with Extra-Low Pressure Gradient
Most ancient karst gas reservoirs with deep burial depth, with developed fracture and cave, belong to multi-media ones and are characterized by low...
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Study of Unstable Percolation in Low Permeability Deformed Medium Reservoir with Start-Up Pressure Gradient
Considering start-up pressure gradient, the problem of non Darcy unstable percolation in low permeability deformed medium reservoir is studied. By...
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Assessment of Wall Modeling With Adverse Pressure Gradient for High Reynolds Number Separated Flows
This paper applies a recently developed approach for modeling turbulence near wall regions within a lattice Boltzmann solver, in combination with a...
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An Empirical Wall Law for the Mean Velocity in an Adverse Pressure Gradient for RANS Turbulence Modelling
An empirical wall law for the mean velocity in an adverse pressure gradient is presented, with the ultimate goal of aiming at the improvement of RANS...
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Discussion on Factors Affecting Threshold Pressure Gradient in Tight Sandstone Reservoirs
The threshold pressure gradient is a key parameter in studying the flow mechanism in low-permeability oil and gas reservoirs, which controls flow...
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Design method for hypersonic bump inlet based on transverse pressure gradient
Transverse pressure gradient (TPG) is one of the key factors influencing the boundary layer airflow diversion in a bump inlet. This paper proposes a...
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Pressure from Velocity
This chapter describes extraction of static pressure from velocity as an inverse problem. The non-dimensional relation between the total pressure and...
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Experimental and Numerical Analysis of Pressure Gradient and Flow Characteristics of Cemented Paste Backfill Based on Carbonate-Rich Tailings
The transportation of the cemented paste backfill (CPB) slurry through pipeline is a critical phase of CPB delivery system. In this study, CPB is...
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Machine Learning-Assisted Modeling of Pressure Hessian Tensor
Velocity gradient dynamics play a pivotal role in understanding various nonlinear phenomena in turbulent flows. In the evolution of velocity gradient...
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Single-Point Formula and Application of Gas Well Considering Threshold Pressure Gradient
Gas reservoir with low permeability exists threshold pressure gradient during fluid flow. Different from traditional binomial deliverability...
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Turbulence and pressure fluctuations in rough wall boundary layers in pressure gradients
AbstractExperimental and steady RANS data were generated for high-Reynolds-number rough wall flows beneath a systematically constructed family of...
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Effects of boundary layer thickness on the estimation of equivalent sandgrain roughness in zero-pressure-gradient boundary layers
Experiments were conducted in zero-pressure-gradient boundary layers over a rough surface. Profiles of mean velocity and turbulence quantities were...
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Divergence–curl correction for pressure field reconstruction from acceleration in turbulent flows
The pressure, or more precisely, the pressure gradient, plays an important role in turbulent dynamics as it is the dominant forcing term acting on...
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Postbuckling of functionally graded microbeams: a theoretical study based on a reformulated strain gradient elasticity theory
A size-dependent post buckling analysis of functionally graded (FG) microbeams is conducted by using an analytical solution based on a reformulated...
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Dynamics of Turbulent Kinetic Energy Advection in a Turbulent Boundary Layer Under Unsteady Pressure Gradients
Pressure-induced flow separation, which occurs in the presence of a strong adverse pressure gradient, is very common in many physical systems,...