Topic
Nozzle
About: Nozzle is a research topic. Over the lifetime, 158675 publications have been published within this topic receiving 893026 citations. The topic is also known as: spout.
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TL;DR: In this paper, an iterative method is presented for modelling reactive gas flows within shock tunnels, which overcomes both the problem of the stiffness of the chemical rate equations, which arises due to the greatly varying reaction' rates, and the throat singularity in the velocity equation for subsonicsupersonic flow within a Laval nozzle.
Abstract: An iterative method is presented for modelling reactive gas flows within shock tunnels. The method overcomes both the problem of the stiffness of the chemical rate equations, which arises due to the greatly varying reaction' rates, and the throat singularity in the velocity equation for subsonicsupersonic flow within a Laval nozzle. The effects of Coulomb interactions which depress the ionization potential of the ionic species can also be included because of the iterative nature of the method. The method computes the state of the gas both along the flow and within the reservoir or stagnation region. Sample computations are given for air, carbon dioxide and nitrogen for reservoir-nozzle gas flows and for flows behind normal shocks.
84 citations
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11 Apr 1989TL;DR: In this paper, a thrust vectoring axisymmetric convergent divergent variable exhaust nozzle is provided with a universally pivoting joint between the divergent and convergent flaps.
Abstract: A thrust vectoring axisymmetric convergent divergent variable exhaust nozzle is provided with a universally pivoting joint between the divergent and convergent flaps and actuating the linkage mechanisms for changing the divergent nozzle section from axisymmetrical to asymmetrical by pivoting the divergent flaps in the radial and tangential directions with respect to the axisymmetric nozzle centerline in a controlled manner.
84 citations
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07 Jul 1989TL;DR: A silicon compound nozzle has two generally planar parallel plates with offset openings coupled by a shear gap as discussed by the authors, which increases fluid dispersion and increases fluid flow in the gap.
Abstract: A silicon compound nozzle has two generally planar parallel plates with offset openings coupled by a shear gap. Fluid flow in the shear gap is generally parallel to the plates and increases fluid dispersion.
84 citations
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TL;DR: Formation of sprays by five hydraulic nozzles were investigated in order to establish whether the proven effects of adjuvants on sprays from a standard flat fan nozzle are reproduced by other hydraulicNozzles, with the hollow cone and pre-orifice nozzle showing substantial differences.
84 citations
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TL;DR: The LIMMCAST facility as discussed by the authors was designed for modeling fluid flow and transport processes in the continuous casting of steel and operates at temperatures of 200-400°C by using the low melting point alloy SnBi.
Abstract: This paper presents the new experimental facility LIMMCAST which was designed for modeling fluid flow and transport processes in the continuous casting of steel. The facility operates at temperatures of 200–400°C by using the low melting point alloy SnBi. The main parameters of the facility, including the dimensions of the test sections, will be given. The resultant possibilities with respect to flow investigations in the tundish, in the submerged entry nozzle, and in the mould will be discussed. Over the period of assembling and commissioning the LIMMCAST facility, the small-scale set-up Mini-LIMMCAST was employed which uses the alloy GaInSn that is liquid at room temperatures. At this precursory facility an experimental program was started which is focused on quantitative flow measurements in the mould and in the submerged entry nozzle (SEN). The Ultrasound Doppler Velocimetry (UDV) and the Contactless Inductive Flow Tomography (CIFT) were applied to determine the flow structure within the mould. First experimental results will be presented here for a single and a two-phase flow in which argon gas bubbles were injected at the inlet of the SEN. According to the concept of the electromagnetic brake the impact of a DC magnetic field on the emergent jet flow from the SEN has been studied.
84 citations