Articles with "velocity profile" as a keyword



Energy management of HEVs based on velocity profile optimization

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Published in 2018 at "Science China Information Sciences"

DOI: 10.1007/s11432-018-9529-7

Abstract: Dear editor, Ecological awareness and economical reasons call for a substantial reduction of the fuel consumption of all future automobiles. One of the most realistic short-term solutions to energy saving is represented by hybrid electric… read more here.

Keywords: energy; energy management; fuel; optimization ... See more keywords

Measurement of velocity profiles in transient single and multiphase flows using inductive flow tomography

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Published in 2017 at "Flow Measurement and Instrumentation"

DOI: 10.1016/j.flowmeasinst.2017.08.010

Abstract: Abstract This paper reports on the use of inductive flow tomography (IFT) to study the dynamic flow behaviour that occurs when a control valve on a pipeline is suddenly opened or closed with the flow… read more here.

Keywords: water; velocity; velocity profile; flow tomography ... See more keywords

Velocity profiles of granular flows down an inclined channel

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Published in 2019 at "International Journal of Multiphase Flow"

DOI: 10.1016/j.ijmultiphaseflow.2018.09.002

Abstract: Abstract Granular flows over a static pile have been investigated in an inclined channel. Instead of dividing the granular motions into fast flow with linear velocity profile and creeping motion with exponential velocity profile, we… read more here.

Keywords: granular flows; velocity; flowing layer; velocity profile ... See more keywords

Velocity Profile Geometries and Granular Temperature Distributions in Very Dense Granular Flows

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Published in 2024 at "Geophysical Research Letters"

DOI: 10.1029/2023gl104410

Abstract: Understanding the motion of particles in very dense granular flows is crucial for comprehending the dynamics of many geological phenomena, and advancing our knowledge of granular material physics. We conduct transparent ring shear experiments to… read more here.

Keywords: temperature; velocity profile; profile geometries; dense granular ... See more keywords
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Minimum-time velocity profile planning for planar motion considering velocity, acceleration and jerk constraints

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Published in 2023 at "International Journal of Control"

DOI: 10.1080/00207179.2021.1987526

Abstract: This paper deals with a computationally efficient velocity profile planning of wheeled mobile robots restricted to a planar motion. The resulting profile complies with velocity, acceleration, and jerk constraints, all expressed in tangential and radial… read more here.

Keywords: jerk constraints; velocity profile; velocity; jerk ... See more keywords

On the invariant mean velocity profile for compressible turbulent boundary layers

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Published in 2017 at "Journal of Turbulence"

DOI: 10.1080/14685248.2016.1269911

Abstract: ABSTRACTAn invariant mean velocity profile is derived and validated by direct numerical simulations of compressible turbulent boundary layers (CTBL) for a range of Reynolds number, Mach number and wall temperature. Near the wall, we reveal… read more here.

Keywords: mean velocity; velocity; invariant mean; turbulent boundary ... See more keywords

Shape and scaling of the mean-velocity profile in thermally-stratified plane-Couette flows

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Published in 2021 at "Fluid Dynamics Research"

DOI: 10.1088/1873-7005/ac451a

Abstract: It has long been known from measurements that buoyant motions cause the mean-velocity profile (MVP) in thermally-stratified, wall-bounded turbulent flows to significantly deviate from its constant-density counterpart. Theoretical analysis has restricted attention to an ‘intermediate… read more here.

Keywords: shape; stratified plane; mean velocity; velocity profile ... See more keywords

A Vehicle-Environment Cooperative Control Based Velocity Profile Prediction Method and Case Study in Energy Management of Plug-in Hybrid Electric Vehicles

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2921949

Abstract: The vehicle-environment cooperative (VEC) control has shown a great potential to improve vehicle performance. Consequently, it is desirable to further investigate the incorporation of the VEC control. In this context, a novel method is proposed… read more here.

Keywords: vehicle; control; method; velocity profile ... See more keywords

Analytical Solutions for Hypersonic Glide Trajectory Based on Altitude–Velocity Profile

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Published in 2024 at "IEEE Transactions on Aerospace and Electronic Systems"

DOI: 10.1109/taes.2024.3417425

Abstract: This article addresses the challenge of rapid trajectory planning for diverse reentry missions by introducing 3-D analytical solutions for the hypersonic glide trajectory based on the altitude–velocity profile. The 3-D analytical solutions consist of longitudinal… read more here.

Keywords: velocity profile; altitude velocity; analytical solutions; hypersonic glide ... See more keywords

Optimal Constant Acceleration Motion Primitives

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Published in 2019 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2019.2927124

Abstract: This paper proposes new motion primitives that are time optimal and feasible for a vehicle (wheeled-mobile robot). They are parameterized by a constant acceleration and a constant deceleration in an obstacle-free environment between an initial… read more here.

Keywords: constant acceleration; velocity profile; motion primitives; motion ... See more keywords

Surface‐wave inversion for a P‐velocity profile with a constant depth gradient of the squared slowness

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Published in 2017 at "Geophysical Prospecting"

DOI: 10.1111/1365-2478.12450

Abstract: ABSTRACT Surface waves are often used to estimate a near‐surface shear‐velocity profile. The inverse problem is solved for the locally one‐dimensional problem of a set of homogeneous horizontal elastic layers. The result is a set… read more here.

Keywords: inversion; gradient squared; velocity; model ... See more keywords