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Incompressible Single and Multi-phase SPH with Improved Boundary Treatment

Project information

Grant agreement ID: 231048

Status

Closed project

  • Start date

    1 September 2009

  • End date

    31 August 2013

Funded under:

FP7-PEOPLE

  • Overall budget:

    € 100 000

  • EU contribution

    € 100 000

Coordinated by:

SABANCI UNIVERSITESI

Turkey

Objective

The objectives of the proposal are to 1) implement a new improved boundary treatment method (refer to as Multiple Boundary Tangent (MBT) developed by PI) to simulation of complex geometries such as flow over an airfoil, and 2) develop an incompressible multiphase SPH (IMSPH) algorithm, and 3) study feasibility of modeling single crystal growth (CG) processes with SPH. In literature, benchmark simulations using previously reported boundary treatments can suffer from particle penetration and may corrupt simulations near solid boundaries. Current SPH boundary treatments do not properly treat curved boundaries in complicated flows. These drawbacks are remedied in MBT. Previously solved benchmark problems using MBT were relatively simple. To understand full power and limitations of MBT, PI plans to solve complex flow problems such as flow over an airfoil and free surface flow. PI’s current incompressible SPH code will be further improved to develop an IMSPH code. In this direction, a novel multiphase projection formulation will be developed to treat sharp changes in transport properties and density. Several benchmark problems will be solved for validation. Resin filling process in polymer composite manufacturing by RTM will be simulated as a multiphase flow. SPH is convenient for simulations involving moving interfacial surfaces such as semiconductor CG. In CG, mesh-dependent methods are difficult to implement, as computational mesh is required to adapt to CG surface. In modeling of ternary alloy crystals, governing equations must be solved simultaneously in liquid and solid phases to resolve growth interface correctly. This requires iterations at liquid/solid interfaces, slowing down simulations notably. In SPH, there is no need for interface iterations; all domains are solved as a single domain. However, SPH is still slow compared with the finite volume method. It requires further research and developments for computational efficiency.

Coordinator

SABANCI UNIVERSITESI

Address

Orhanli Tuzla
34956 Istanbul

Turkey

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 100 000

Administrative Contact

Zeynep Birsel (Ms.)

Project information

Grant agreement ID: 231048

Status

Closed project

  • Start date

    1 September 2009

  • End date

    31 August 2013

Funded under:

FP7-PEOPLE

  • Overall budget:

    € 100 000

  • EU contribution

    € 100 000

Coordinated by:

SABANCI UNIVERSITESI

Turkey