Publications related to Dissipation

Structure-Preserving Model-Reduction of Dissipative Hamiltonian Systems

Jan Sickmann Hesthaven, Babak Maboudi Afkham

Reduced basis methods are popular for approximately solving large and complex systems of dierential equations. However, conventional reduced basis methods do not generally preserve conservation laws and symmetries of the full order model. Here, we present ...

2017

Modeling and Analysis for Thermal Management in Gallium Nitride HEMTs Using Microfluidic Cooling

Gunjan Agarwal

In this paper, thermal management in GaN (gallium nitride) based microelectronic devices is addressed using microfluidic cooling. Numerical modeling is done using finite element analysis (FEA), and the results for temperature distribution are presented for ...

American Society of Mechanical Engineers2017

Existence and Non-uniqueness of Global Weak Solutions to Inviscid Primitive and Boussinesq Equations

Elisabetta Chiodaroli

We consider the initial value problem for the inviscid Primitive and Boussinesq equations in three spatial dimensions. We recast both systems as an abstract Euler-type system and apply the methods of convex integration of De Lellis and Sz,kelyhidi to show ...

Springer Verlag2017

A comparative study of shock capturing models for the discontinuous Galerkin method

Jan Sickmann Hesthaven

Dealing with strong shocks while retaining numerical dissipation of reasonably low level has been one of the major challenges for high order methods like discontinuous Galerkin. In the literature, various shock capturing models have been designed based on ...

Elsevier2017

Flow characteristics and influence associated with inter-blade cavitation vortices at deep part load operations of a Francis turbine

François Avellan, Arthur Tristan Favrel, Christian Landry, Keita Yamamoto

At a deep part load operation, Francis turbines are subject to the formation of inter-blade cavitation vortices inside blade channels, however its characteristics are not fully understood yet. The present study aims to investigate the development of the in ...

2017

The DTT device: Power and particle exhaust

Holger Reimerdes

The possible scenarios at full power of the DTT (Divertor Test Tokamak) device with the standard single null (SN) and X divertor (XD) configurations have been analysed for the aspect of safely handling the power to be exhausted on the divertor targets. In ...

Elsevier Science Sa2017

Existence and Non-uniqueness of Global Weak Solutions to Inviscid Primitive and Boussinesq Equations

Elisabetta Chiodaroli

We consider the initial value problem for the inviscid Primitive and Boussinesq equations in three spatial dimensions. We recast both systems as an abstract Eulertype system and apply the methods of convex integration of De Lellis and Székelyhidi to show t ...

2017

A multi-scale based cohesive zone model for the analysis of thickness scaling effect in fiber bridging

John Botsis, Luis Pablo Canal Casado

A cohesive zone model (CZM) is proposed to assess the thickness scaling effect associated with fiber bridging during fracture. The CZM was developed through a multi-scale simulation approach and utilizes an embedded cell model of the Double Cantilever Beam ...

Elsevier2017

Energy dissipation and recovery in web-flange junctions of pultruded GFRP decks

Thomas Keller, Julia De Castro San Roman Fest, Sonia Yanes Armas

The energy dissipation capacity resulting from progressive cracking and the recovery after unloading of the web-flange junctions (WFJs) of a pultruded GFRP deck were experimentally investigated. Web-cantilever bending experiments up to failure were perform ...

Elsevier2016

Dissipation engineering of high-stress silicon nitride nanobeams

Tobias Kippenberg, Dalziel Joseph Wilson, Amir Hossein Ghadimi

High-stress Si

_3

N

_4

nanoresonators have become an attractive choice for electro- and optomechanical devices. Membrane resonators can achieve quality factor (

Q

) - frequency (

f

) products exceeding

10^{13}

Hz, enabling (in principle) quantum coheren ...

2016

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Structure-Preserving Model-Reduction of Dissipative Hamiltonian Systems

Modeling and Analysis for Thermal Management in Gallium Nitride HEMTs Using Microfluidic Cooling

Existence and Non-uniqueness of Global Weak Solutions to Inviscid Primitive and Boussinesq Equations

A comparative study of shock capturing models for the discontinuous Galerkin method

Flow characteristics and influence associated with inter-blade cavitation vortices at deep part load operations of a Francis turbine

The DTT device: Power and particle exhaust

Existence and Non-uniqueness of Global Weak Solutions to Inviscid Primitive and Boussinesq Equations

A multi-scale based cohesive zone model for the analysis of thickness scaling effect in fiber bridging

Energy dissipation and recovery in web-flange junctions of pultruded GFRP decks

Dissipation engineering of high-stress silicon nitride nanobeams

Energy dissipation and recovery in web-flange junctions of pultruded GFRP decks

Existence and Non-uniqueness of Global Weak Solutions to Inviscid Primitive and Boussinesq Equations

Flow characteristics and influence associated with inter-blade cavitation vortices at deep part load operations of a Francis turbine

A multi-scale based cohesive zone model for the analysis of thickness scaling effect in fiber bridging

The DTT device: Power and particle exhaust

Modeling and Analysis for Thermal Management in Gallium Nitride HEMTs Using Microfluidic Cooling

Existence and Non-uniqueness of Global Weak Solutions to Inviscid Primitive and Boussinesq Equations

A comparative study of shock capturing models for the discontinuous Galerkin method

Structure-Preserving Model-Reduction of Dissipative Hamiltonian Systems

Dissipation engineering of high-stress silicon nitride nanobeams