iGRAF
iGRAF is an integrated powder and multiphase flow simulation tool that seamlessly merges the domains of powder and fluid simulation. It is designed as a one-stop solution for replicating a wide variety of powder behaviors and redefining standards in simulation technology. iGRAF’s integrated DEM-CFD solver enables accurate and efficient analysis of single-phase and multiphase flow, helping users understand particle-fluid interactions in one platform. Its dynamic geometry control supports translations, rotations, vibrations, and user-defined motion, allowing teams to precisely capture the dynamics of complex systems. It includes validated liquid bridging models and van der Waals forces to analyze the influence of moisture and adhesion on particle behavior, with its liquid bridge force model extensively validated up to 15% moisture content. iGRAF also combines the Signed Distance Function and Immersed Boundary Method to recognize arbitrary solid geometries.
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PVTsim
Calsep is a leading provider of PVT simulation services to the oil & gas industry. Calsep has solved PVT modeling projects in all continents. The projects involve EoS modeling of all types of reservoir fluids, including natural gas, gas condensates, near-critical fluids, black oils and heavy oils. Calsep’s main product is PVTsim Nova, a versatile PVT simulation program for reservoir engineers, flow assurance specialists, PVT lab engineers, and process engineers. PVTsim takes you all the way from fluid sample to design and process planning. You can quality check your fluid compositions, develop EoS models, handle water, evaluate the risk of solids precipitation and generate input to more than 30 different external simulators including some of the most widely used reservoir, process and flow simulators. With PVTsim Nova 5.1 Calsep supports PRODML and Calsep Excel PVT Templates, which can be used for importing fluid compositions and PVT data into PVTsim in one click.
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MFiX
MFiX, or Multiphase Flow with Interphase eXchanges, is an open source multiphase flow solver and NETL’s flagship suite of computational fluid dynamics tool for modeling reacting multiphase flows. It has become a standard for comparing, implementing, and evaluating multiphase flow constitutive models, and has been applied to a diverse range of multiphase flow devices and industrial systems. MFiX provides multiple modeling approaches, including a Two-Fluid Model, Discrete Element Model, Coarse-Grained Particle DEM, Superquadric Particle DEM, Glued-Sphere Particle DEM, Particle-in-Cell model, hybrid methods, and a single-phase solver for pure granular flows. These models can be used to simulate gasifiers, circulating fluidized bed combustors, fluidized beds, fluid catalytic crackers, chemical looping combustion systems, and other particle-fluid systems involving hydrodynamics, heat transfer, species transport, and chemical reactions.
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Dive
Dive CAE is a cloud-native computational fluid dynamics software platform that enables engineers to simulate complex fluid behaviors, such as free-surface flow, multiphase interactions, heat transfer, and moving machinery, using a mesh-free Smoothed Particle Hydrodynamics method. It runs entirely in the browser and on high-performance computing infrastructure, so users don’t need local hardware or installation. The mesh-free approach allows for modeling of complex geometry, surface tension, non-Newtonian fluids, and transient flows without the time-consuming meshing and tuning required by conventional CFD. Onboarding is fast (typically under one day), and the software supports parallel design-of-experiment workflows that deliver multiple iterations in hours rather than days. Dive CAE emphasizes collaboration, license simplicity (one licence for all users), transparent cost control, data usage governance, and scalability via cloud infrastructure.
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