The concept of creating a pulse water gun with a large action range
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 4, Issue 5
Abstract
<p>We presented the concept of creation of a pneumatic pulse water gun. Its original feature is a use of a developed turbulent flow at the attenuation stage for formation of a jet. We suppose to create the required structure of small-scale turbulence according to a known procedure by means of a lattice in a barrel channel. The maximum intensity of this turbulence will be at a certain distance from a lattice, where a nozzle must be installed to take a turbulent structure into a jet. Well-known theoretical concepts and experimental facts give possibility to state that small-scale turbulence has the property of flow stability to excitations. We assumed that this property would act in a jet and provide its stability before expenditure of turbulence energy and prevent appearance of large-scale turbulence. Thus, it will delay the disintegration of a jet and increase a range of its flight.</p><p>The analysis of a flow in known fountains with a transparent jet showed that representation of a laminar mode in them is incorrect. We presented a substantiation that special properties of jets are a consequence of a turbulent flow in fountains. This conclusion speaks in favor of the proposed use of turbulence as a tool against vortex formation. However, it is not possibly to apply the technique of creation of a jet in fountains for a high-power pulse water gun.</p><p>We proposed a schematic diagram of the pulse water gun with a pneumatic ejection of a water projectile. An obvious problem of combination of a pulse flow with creation of small-scale turbulence is instability of a flow at the initial moment of a pulse. We showed the way of the solution to this problem by the experimental determination of real flow characteristics in a particular water gun design. We offered solutions to the most important technical issues of water gun creation.</p>
Authors and Affiliations
Anatoly Tolkachev, Iryna Sydorenko, Ihor Morozov
Keywords
Related Articles
- EP ID EP528079
- DOI 10.15587/1729-4061.2018.139877
- Views 86
- Downloads 0
Development of the method for estimating serviceability of equipment for the transportation of compressed natural gas
<p>To ensure safe transportation of compressed natural gas, we proposed, based on the results of studies conducted, the algorithm for a method for the evaluation of combined type tanks. The method implies determining par...
Influence of the CaO-containing modifiers on the properties of alkaline alyumosilicate binders
<p>The basis for ensuring the resistance of artificial stone based on alkaline aluminosilicate binders to variable environmental conditions is the formation of zeolite- and mica-like hydrate neo-formations.</p><p>It is p...
Calculation of polycondensation equilibria in aqueous solutions of silica and silicates
<p>We proposed some complication of the previously used calculation model to expand capabilities of the theoretical description of acid-base and polycondensation equilibria in water-silicate systems. A fuller account of...
Method for determining elements of urban infrastructure objects based on the results from air monitoring
<p>The study proposes a two-stage method for determination of elements of urban infrastructure objects in images made by air monitoring systems. The first stage implies determining the contours of objects in images. The...
Substantiation of parameters for the technological process of restoring machine parts by the method of plastic deformation
<p>We have studied technological processes related to the restoration of worn-out parts of agricultural machinery (plowshares, cultivator sweeps) that operate under conditions of intensive abrasive wear. We have determin...