نرم افزار CD Adapco STAR-CCM

نرم افزار CD Adapco STAR-CCM

نرم افزار STAR CCM یکی نرم افزار در حوزه دینامیک سیالات محاسباتی بوده که توسط شرکت چند ملیتی CD-Adapco توسعه یافته است. این شرکت با نام کامل Computational Dynamics-Analysis & Design Application Company Ltd محصولات مختلفی را تاکنون معرفی کرده است که از آن میان فقط دو نرم افزار STAR-CD و STAR-CCM در زمینه CFD می‌باشد.

این نرم افزار همانند نرم افزار فلوئنت، قابلیت تحلیل تمام رژیم های جریان و همچنین هندسه های پیچیده و جریان های چند فازی را دارا می باشد و همیشه به عنوان یک رقیب برای فلوئنت وجود داشته است. همچنین توانایی کوپل شدن با نرم افزارهای ICEM CFD، Gambit  و سایر نرم افزارهای تولید شبکه را نیز دارا میباشد.

ازطرفی دیگر بر خلاف سایر نرم افزارها، با خرید یک لایسنس می توان محاسبات موازی را بر روی بی نهایت هسته محاسباتی انجام داد و لذا یک مزیت عمده این نرم افزار محسوب می شود.

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CD-ADAPCO STAR-CCM+ 11.02.009 – R8

 

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معرفی قابلیت در Fluid Dynamics

STAR-CCM+ has comprehensive options for the simulation of a multitude of different flow regimes, both steady and unsteady in time, from inviscid or laminar flow, through transitional flows to fully turbulent, and both incompressible and compressible flows, from subsonic, through transonic and supersonic, to hypersonic regimes. There are a number of different equations of state including both ideal and real gases, user defined and polynomial density relationships, and for high speed compressible aerodynamics, equilibrium air, and thermal non-equilibrium. For non-Newtonian flows, STAR-CCM+ allows the user to choose from standard models such as the Generalized Power Law (Herschel-Bulkley law), the Cross model or Carreau-Yasuda model, and for emulsions and suspensions, the Eulerian Multiphase model offers the Krieger-Dougherty and Morris-Boulay models. An extensive materials database is available with standard material properties as well as the ability for users to create and edit their own.

معرفی قابلیت تحلیل Turbulence

Understand turbulence on any scale with a comprehensive suite of models
A key requirement in the accurate simulation of fluid flow is the choice of the correct approach to modeling turbulence. To this end, STAR-CCM+ provides a comprehensive range of state of the art models. STAR-CCM+ was used to perform the aerodynamic analysis of a Wilson soccer ball in order to better understand its side force effect. The image shows streamlines in the wake behind the soccer ball.

RANS models include; Spalart-Allmaras, a range of K-Epsilon models, both standard and SST variants of the K-Omega model as well as two Reynolds stress models. Where laminar-turbulent transition occurs, STAR-CCM+ has the option to use the Gamma-Re-Theta model to model its onset.

When more accurate capture of turbulent flow structures is required such as in the study of aeroacoustics, STAR-CCM+ has a number of options for both LES and DES modeling. For LES, the Smagorinsky, dynamic Smagorinsky and WALE subgrid models are available. For DES, the latest delayed and improved delayed detached eddy simulation models are available for both Spalart-Allmaras and K-Omega SST variants. Finally, the synthetic eddy method for the specification of realistic inflow boundary conditions is available for both LES and DES.

معرفی قابلیت تحلیل Heat Transfer

conduct accurate and efficient heat transfer analysis across a wide range of industries and applications
The accurate and efficient prediction of heat transfer is a key requirement across a range of industries. STAR-CCM+ is successfully applied for heat transfer analysis by our users every day from applications as diverse as thermal comfort in buildings through to gas turbine cooling. Surface to surface radiation simulation : STAR-CCM+ is an efficient and accurate tool to help identify problems and focus on thermal solutions including adressing conduction, radiation, convection and CHT

Conjugate Heat Transfer

The simulation of heat transfer from both solid and fluid within a single simulation can improve accuracy of the results as well as turnaround time. STAR-CCM+’s meshing tools are a key enabler of accurate CHT analysis allowing both fluid and solid to be automatically meshed conformally, removing the need for mapping routines or interface interpolation. Where the solid structure of interest is thin, STAR-CCM+ has the option to replace the solids with a zero-thickness shell. These solid shells allow for the study of in-plane conduction within the structure without having to mesh the full thickness. This saves time both in the meshing and the solution phases of the simulation.

Radiation

STAR-CCM+ has a comprehensive set of tools for the modeling of radiative heat transfer from simple surface to surface transfer through to discrete ordinate modeling (DOM) for participating media. STAR-CCM+’s surface to surface radiation modeling capabilities cover a wide range of different applications with models for both gray thermal and multi-band radiation. For the simulation of solar radiation, STAR-CCM+ has a dedicated model including a solar loads calculator which automatically calculates solar sources based upon geographical location and time/date. When interacting with solids and boundaries, the radiation model can handle both transparent and partially transparent objects as well as specular reflectivity.

معرفی قابلیت تحلیل Aeroacoustic

Aeroacoustics involves the generation of acoustic noise by unsteady flows. This includes noise generated by jets, complex shear layers and flow over rigid structures.
 Aeroacoustics on HVAC system : vibro-acoustics and aero-acoustics can be combined to model complex aero-vibro-acoustics problems such as those encountered in HVAC systems.

STAR-CCM+ includes an extensive library of aeroacoustic methods for predicting the sources of aeroacoustic noise.  These range from steady state methods through to full direct simulation using DES, LES and near and far field propagation.  The methods can also be combined with wave6  for modeling aeroacoustic installation effects and flow induced noise and vibration transmission.

Steady State Models

Steady state models can be used early in the design process to quickly identify possible sources of noise. STAR-CCM+ provides the Curle, Proudman and Goldstein axisymmetric noise source models which may be used in RANS simulations. The Linearized Euler equation (LEE) and Lilley noise source model are available for synthesized fluctuations – stochastic noise generation and radiation (SNGR).  The steady state models also include functionality for estimating mesh cut-off frequencies in order to identify areas where additional mesh refinement may be needed.

Direct Models

STAR-CCM+ can be used to accurately model the sources of noise in unsteady flows modeled with DES and LES.  This includes both accurate prediction of the convective turbulence that generates the noise along with methods for propagating that noise in the near field (using compressible CFD or using incompressible CFD along with the newly developed time domain Acoustic Wave Equation solver in STAR-CCM+).  STAR-CCM+ also includes functionality for identifying aero-acoustic noise sources on permeable or impermeable surfaces in the time domain using the inbuilt Ffowcs Williams-Hawkings (FWH) acoustic models.  Advanced signal processing functionality is also included for diagnosing the sources of noise in flow including Fast Fourier transforms (FFTs) to analyze frequency and wavenumber content, inverse FFTs, band pass filters, auto-spectra and cross-spectra.

Propagation Models

STAR-CCM+ includes functionality for propagating aeroacoustic noise sources on permeable and impermeable surfaces to far field receiving locations using the inbuilt time domain FWH methods.  For problems which involve scattering and diffraction of acoustic waves or transmission of flow induced noise and vibration through complex vibro-acoustic systems it is also possible to extend the functionality in STAR-CCM+ using the frequency domain methods in wave6.








 

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4 دیدگاه برای “نرم افزار CD Adapco STAR-CCM”

  1. علی گفت:

    لطفا فایل آموزش هم بزارید
    سایتتون عالیه
    خسته نباشید دوستان عزیز

  2. saeed گفت:

    alieee lotfan amoozesh va etelaate bishtar bezarid va moghayese konid in narm afzaro ba ansyss

  3. اسما گفت:

    با سلام
    در گورد نرم افزار ccm آیا این نرم افزار قفل شکسته است و یا free است؟

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