A method to obtain the local heat transfer coefficients of carbon dioxide at supercritical pressures in vertical multi-port mini-channels and in a vertical small tube under cooling conditions was presented through the combination of experiments and numerical simulation in this paper. The CFD code FLUENT 6.1 was used to simulate the convection heat transfer of cooling water to determine the loca...

A summary of the main field methods of research used in a sedimentological study of part of Tauranga Harbour is presented. The research concentrated on the tidal inlet which is the entrance to the Port of Tauranga. SCUBA divers have carried out direct observations of the sea bed and installed various monitoring devices. Sediment sampling programmes posed problems which were largely overcome by ...

During the development of stealth fighter, S-shaped inlet enters designer’s vision because it has better than bump and straight inlet. use inlet, due to its structural reasons, secondary flow is likely occur in curved section, which directly causes state be changeable complicated. Therefore, this paper takes as research object analyzes steady field simulation under uniform condition distortion ...

Port silting is a common and natural process which often causes serious inconveniences for safe navigation requires expensive dredging operations to keep the port operative. Sediment deposition closely related exchange water between basin surrounding environment; one way limit deposits by reducing flow entering port. However, this may be in contrast with need adequate sediment quality, turn an ...

Urban pollution caused by road particles is widely criticized. The complex and changeable internal flow field of the dust suction port has greatest influence operation effect. aim this paper to explore law various influencing factors on characteristics sweeper’s port, reveal its mechanism efficiency port. results study show that: increasing width outlet diameter will change characteristics, acc...

A twin six-port valve with two sample loops was installed between the autosampler and the nebuliser of a simultaneous inductively coupled plasma-atomic emission spectrometer. The valve was mounted close to the nebuliser inlet so that the time required for the sample to enter from the loop to the nebulizer was less than 0.5 s. The content of one loop was introduced to the nebulizer using a peris...

Direct injection for gas chromatographic profi ling of alcoholic beverages is usually preferable, but where spirits and liquors contain appreciable amounts of non-volatile material, some mode of pre-treatment may be required to avoid both inlet and column contamination. This consideration applies in particular to products aged for extended periods in wooden barrels and especially products conta...