THERE is a long history of the use of adjoint equations in optimal control theory. 1 In uid
dynamics, the fi rst use of adjoint equations for design was by Pironneau, 2 but within the fi …

This paper describes a collaborative CFD development framework led by Rolls-Royce plc.
The framework is novel both in the underpinning CFD solver and the network of CFD …

Nonlinear, time-linearized and adjoint Reynolds-averaged Navier-Stokes (RANS)
computational fluid dynamics (CFD) solvers are widely used to assess and improve the …

Modern lean burn combustors now employ aggressive swirlers to enhance fuel-air mixing
and improve flame stability. The flow at combustor exit can therefore have high residual …

Развиваются методы ускорения сходимости итерационного процесса, основанные на
использовании геометрических и алгебраических многосеточных технологий …

Разрабатываются методы и алгоритмы решения задач механики жидкости и газа, а
также соответствующие программные средства и технологии, обсуждаются методы …

A new implicit time-stepping scheme which uses Runge–Kutta time-stepping and Krylov
methods as a smoother inside FAS-cycle multigrid acceleration is proposed to stabilise the …

Swirling flows are now widely being used in modern gas turbine combustors to improve the
combustion characteristics, flame stability, and reduce emissions. Residual swirl at the …

This paper presents experimental measurements and computational predictions of surface
and end wall heat transfer for a high-pressure (HP) nozzle guide vane operating as part of a …

Hydra is a full-scale industrial CFD application used for the design of turbomachinery at
Rolls Royce plc., capable of performing complex simulations over highly detailed …