An essential part of fire risk assessment is the analysis of fire hazards and fire propagation. In this work, models and tools for two different aspects of numerical fire simulation have been developed. The primary objectives have been firstly to investigate the possibility of exploiting state-of-the-art fire models within probabilistic fire risk assessments and secondly to develop a computatio...

An evaluation of the current status of two novel clusters, running Linux and NT, has been made to assess their performance for parallel CFD calculations. The core algorithm of the code is the conjugate gradient method used to solve the pressure equation. For good performance, a low latency and high bandwidth is required and the results indicate that, without substantial investment in this area,...

In recent times, there has been a rise in popularity of comfort cooling systems, mainly based on electrically driven heat pumps. The accompanying peak loading on electricity grids is proving to be particularly problematic and expensive for electricity utilities, notwithstanding the greenhouse gas emissions associated with the electricity consumption of these het pumps. An alternative is to gene...

The most-widely used approach to explosion consequence analysis is the classical engineering method based on the combination of TNT equivalence, scaled distances and overpressure-based damage levels. This approach rests on established and easily comprehensible elements and permits a fast assessment of explosion consequences. There are however several limitations inherent in this approach. In co...

The first version of an anatomy editing/surgical planning tool targeting anatomical complexity and patient-specific computational fluid dynamics (CFD) analysis is presented. Novel shape editing concepts and human-shape interaction (HSI) technologies have been combined to facilitate interactive shape alterations and grid generation. At a surgery planning phase, these tools are applied to design ...

We demonstrate that a computational fluid dynamics (CFD) model enhanced with molecular-level information can accurately predict unsteady nano-scale flows in non-trivial geometries, while being efficient enough to be used for design optimisation. We first consider a converging–diverging nano-scale channel driven by a time-varying body force. The time-dependent mass flow rate predicted by our enh...

The use of Computational Fluid Dynamics (CFD) as a predictive tool for design engineers to use during the early stages of product design has been seen as a desirable goal for many years. Studies have shown that design errors caught during the early stages of design lead to large " downstream " savings in manufacturing, material, and warranty [1]. Furthermore, it has been shown that once a desig...

This study proposed a the new cost effective design of diesel exhaust waste heat recovery system (WHRS) for Bus rapid transport System (BRTS, Jaipur) and Stationary System and proposes a cost effective robust design that meets the principle design constraints for WHRS. In order to address various design constraints for WHRS while achieving the required performance of the system, numerical analy...

Stability against capsizing is one of the most fundamental requirements to design a ship. In this research, for the first time, CFD is performed to predict main modes of capsizing. CFD first is conducted to predict parametric rolling for a naval ship. Then CFD study of parametric rolling is extended for prediction of broaching both by using CFD as input to NDA model of broaching in replacement ...

The main objective of COST Action 732 (COST Action 732, 2009) is the determination and improvement of model quality for the application of microscale meteorological models to the prediction of flow and dispersion processes in urban or industrial environments. The approach adopted in COST 732 is to produce three documents that are intended to assist model developers and users in the evaluation o...