stability analysis of the power-law steady state of

to issues with the permanent magnet rotor and motor-generator controller for the turbine-generator. Remagnetization of the rotor along with motor-generator controller improvements have increased the power output capability of the generator to at least 40 kWe. Steady-state operation at various power levels

This report presents an evaluation of the steady-state capability of the turbulence models available in the commercial CFD code FLUENT 6.0, for their application to the simulation of hydrofoil turbulent boundary layer separation at high-Reynolds numbers. Four widely applied two-equation RANS

to the production of biodiesel, the pro-rated to lifetime embodied energy of all the piping systems and the pumping energy involved in the protocol can be a small fraction of the microalgae energy yield as crude oil. This protocol should prove particularly useful for the exploitation of marine microalgae growing

Abstract. Ozone (O3) is a photochemical oxidant, an air pollutant and a greenhouse gas. As the main precursor of the hydroxyl radical (OH) it strongly affects the oxidation power of the atmosphere. The remote marine boundary layer (MBL) is considered an important region in terms of chemi-cal O3

against LES for a range of different cases, including a dry convective boundary layer as well as steady-state marine and transient continental shallow cumulus, reveals a data-collapse of the newly-scaled variance, for all hours and all cases in the top half of the mixed layer. The corresponding vertical

The ability of mathematical models to simulate competition for nutrients between three algal species, the diatom Thalassiosira pseudonana, a marine raphidophyte Heterosigma carterae and the dinoflagellate Alexandrium minutum, was investigated. Transient growth models were parameterized and tested

This paper presents an analysis on steady state behavior of grid connected hybrid renewable energy conversion systems (RECS). Modeling of Doubly Fed Induction Generator (DFIG) for Wind Energy Conversion system (WECS) and marine current energy system,and modeling of PV module is presented. A

The ammonium:nitrate delivery ratio to cells of Dunaliella tertiolecta in continuous culture had no effect on the ambient nitrate concentrations at steady state, indicating that the assimilation of these radicals is competitive, not suppressive, under nitrogen limiting conditions. The physiological

This paper examines dynamical models for bladedpropeller type marine thrusters. Previously reported thruster dynamics models are reviewed, and a new simplified model is proposed. Experimental testing of both the transient and steady-state performance of a marine thruster corroborates previously