Search Results - "Emerson, David R."

A High-Order Hybrid Numerical Scheme for Hypersonic Flow Over A Blunt Body by Chen, Xingxing, Fang, Jian, Moulinec, Charles, Emerson, David R.

“…A hybrid scheme is developed for direct numerical simulations of hypersonic flows over a blunt body. The scheme switches to the first-order AUSMPW+ scheme near…”
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Thermal transients in a U-bend by Skillen, Alex, J. Zimoń, Małgorzata, Sawko, Robert, Tunstall, Ryan, Moulinec, Charles, R Emerson, David

“…•We study the propagation of a hot thermal transient through a U-bend.•The evolution of Dean vortices as the thermal transient passes is studied.•It is found…”
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On the Efficacy of Turbulence Modelling for Sloshing by Mahfoze, Omar Ahmed, Liu, Wendi, Longshaw, Stephen M., Skillen, Alex, Emerson, David R.

“…As part of a wider project to understand the applicability of utilising slosh-based damping for wing-like structures, simulations of partially filled tanks…”
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Simulating Slosh Induced Damping, with Application to Aircraft Wing-like Structures by Liu, Wendi, Mahfoze, Omar Ahmed, Longshaw, Stephen M., Skillen, Alex, Emerson, David R.

“…The added damping generated by liquid sloshing in a tank has been utilized in a number of civil applications, including aviation, to reduce the vibration of…”
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Modelling Thermally Induced Non-Equilibrium Gas Flows by Coupling Kinetic and Extended Thermodynamic Methods by Yang, Weiqi, Gu, Xiao-Jun, Emerson, David R., Zhang, Yonghao, Tang, Shuo

“…Thermally induced non-equilibrium gas flows have been simulated in the present study by coupling kinetic and extended thermodynamic methods. Three different…”
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An iterative machine-learning framework for RANS turbulence modeling by Liu, Weishuo, Fang, Jian, Rolfo, Stefano, Moulinec, Charles, Emerson, David R

“…Iterative ML-RANS framework incorporated with conventional turbulence transport equations.•A built-in reproducibility of the training cases is ensured.•NN is…”
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Continuous cell washing and mixing driven by an ultrasound standing wave within a microfluidic channel by Hawkes, Jeremy J, Barber, Robert W, Emerson, David R, Coakley, W Terence

“…Ultrasound standing wave radiation force and laminar flow have been used to transfer yeast cells from one liquid medium to another (washing) by a continuous…”
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A hybrid approach to couple the discrete velocity method and Method of Moments for rarefied gas flows by Yang, Weiqi, Gu, Xiao-Jun, Wu, Lei, Emerson, David R., Zhang, Yonghao, Tang, Shuo

“…•Kinetic theory is coupled first time with the moment equations without noise.•Both accuracy and efficiency are maintained in multi-scale gas flow…”
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Uncertainty Quantification at the Molecular–Continuum Model Interface by Zimoń, Małgorzata, Sawko, Robert, Emerson, David, Thompson, Christopher

“…Non-equilibrium molecular dynamics simulations are widely employed to study transport fluid properties. Observables measured at the atomistic level can serve…”
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Numerical Simulation of Flow Field and Ion Transport for Different Ion Source Sampling Interfaces of a Mass Spectrometer by Wang, Wei, Bajic, Steve, John, Benzi, Emerson, David R

“…Understanding ion transport mechanisms in the flow expansion section of the first vacuum region of a mass spectrometer (MS) with an atmospheric pressure…”
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The UK Turbulence Consortium by Laizet, Sylvain, Revell, Alistair, Emerson, David R.

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Numerical Simulation of Ion Transport in a Nano-Electrospray Ion Source at Atmospheric Pressure by Wang, Wei, Bajic, Steve, John, Benzi, Emerson, David R.

“…Understanding ion transport properties from the ion source to the mass spectrometer (MS) is essential for optimizing device performance. Numerical simulation…”
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Numerical investigation of transmission probability characteristics in the first low-density region of a laser wakefield accelerator by John, Benzi, Middleman, Keith, Malyshev, Oleg B., Gu, Xiaojun, Symes, Daniel R., Emerson, David R.

“…Transmission probability is an important parameter in vacuum science and technology that needs to be accurately characterised for system design. Typically,…”
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Linearized-moment analysis of the temperature jump and temperature defect in the Knudsen layer of a rarefied gas by Gu, Xiao-Jun, Emerson, David R

“…Understanding the thermal behavior of a rarefied gas remains a fundamental problem. In the present study, we investigate the predictive capabilities of the…”
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Investigation of Heat and Mass Transfer in a Lid-Driven Cavity Under Nonequilibrium Flow Conditions by John, Benzi, Gu, Xiao-Jun, Emerson, David R.

“…Gaseous flow and heat transfer in a lid-driven cavity under nonequilibrium flow conditions is investigated using the direct simulation Monte Carlo method, from…”
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Preface to the special issue on: “29th international conference on parallel computational fluid dynamics” by Drikakis, Dimitris, Fossati, Marco, Kazakidi, Asimina, Emerson, David R.

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Effects of incomplete surface accommodation on non-equilibrium heat transfer in cavity flow: A parallel DSMC study by John, Benzi, Gu, Xiao-Jun, Emerson, David R.

“…The impact of incomplete surface accommodation on non-equilibrium heat transfer in a lid-driven cavity is evaluated by a parallel direct simulation Monte Carlo…”
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A comparative study of boundary conditions for lattice Boltzmann simulations of high Reynolds number flows by Hu, Kainan, Meng, Jianping, Zhang, Hongwu, Gu, Xiao-Jun, Emerson, David R, Zhang, Yonghao

“…•The kinetic boundary condition gives adequate predictions for high-Re cavity flows.•The bounce-back scheme does not affect the accuracy in the bulk region…”
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On the numerical modelling of frozen walls in a molten salt fast reactor by Cartland Glover, Gregory, Skillen, Alex, Litskevich, Dzianis, Rolfo, Stefano, Emerson, David R., Merk, Bruno, Moulinec, Charles

“…•Freezing of salt films on the vessel wall of a molten salt fast reactor was studied.•Separated plutonium and natural uranium were burnt in the molten salt…”
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Simulation of the head-disk interface gap using a hybrid multi-scale method by John, Benzi, Lockerby, Duncan A., Patronis, Alexander, Emerson, David R.

“…We present a hybrid multi-scale method that provides a capability to capture the disparate scales associated with modelling flow in micro- and nano-devices…”
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