Determining the aerodynamic characteristics of the colorado potato beetle collection device
There was developed a mechanical-air devices intended for collection of the Colorado potato beetle and its larvae, consisting of a casing of an oval shape, separated at the top, and a device, through which the casing arranged inside the airflow. The executed theoretical studies devoted to determinin...
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Published in | ÐеÑÑник ÐазанÑкого гоÑÑдаÑÑÑвенного агÑаÑного ÑнивеÑÑиÑеÑÐ no. 4; pp. 87 - 91 |
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Main Authors | , , , |
Format | Journal Article |
Language | Russian |
Published |
2013
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Subjects | |
Online Access | Get more information |
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Summary: | There was developed a mechanical-air devices intended for collection of the Colorado potato beetle and its larvae, consisting of a casing of an oval shape, separated at the top, and a device, through which the casing arranged inside the airflow. The executed theoretical studies devoted to determining the necessary speed-fall of larvae and beetles, computer modeling of air flow inside the device to identify a rational form of housing and assess the impact of the presence of bushes on the velocity field. According to studies the authors prepared a formula and fall velocity values, depending on the orientation and size of insects in space. It was established that the rate of upflow more than 35 m/s provides puffing as adults and larvae, irrespective of their orientation in the housing. In the simulation of air flow within the enclosure, the system of hydrodynamic equations were solved by finite element method using the members of the software packages Salome and OpenFoam of freeware CAE-Linux distribution. It was established that the first in the center upward flow with the velocity of 35m/s is implemented, that blows bush. After that, the flow "leaves" to the right, because the bush creates a drag not symmetrical about a vertical plane, passing through the horizontal axis of the housing. Further in the device a stable motion flow counterclockwise was formed. The obtained results will allow to substantiate the rational form of housing and basic structural and technological parameters of rotor device for collecting the Colorado potato beetle and its larvae.
РазÑабоÑано пневмомеÑ
аниÑеÑкое ÑÑÑÑойÑÑво Ð´Ð»Ñ ÑбоÑа колоÑадÑкого жÑка и его лиÑинок, ÑоÑÑоÑÑее из кожÑÑ
а в виде овала, Ñазделенного навеÑÑ
Ñ, и агÑегаÑа, Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÐºÐ¾ÑоÑого внÑÑÑи кожÑÑ
а оÑганизован воздÑÑнÑй поÑок. ÐÑполненнÑе ÑеоÑеÑиÑеÑкие иÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾ÑвÑÑÐµÐ½Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð½ÐµÐ¾Ð±Ñ
одимой ÑкоÑоÑÑи виÑÐ°Ð½Ð¸Ñ Ð»Ð¸Ñинок и жÑков, компÑÑÑеÑÐ½Ð¾Ð¼Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð²Ð¾Ð·Ð´ÑÑнÑÑ
поÑоков внÑÑÑи ÑÑÑÑойÑÑва Ñ ÑелÑÑ Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ñ ÑаÑионалÑной ÑоÑÐ¼Ñ ÐºÐ¾Ð¶ÑÑ
а и оÑенке влиÑÐ½Ð¸Ñ Ð½Ð°Ð»Ð¸ÑÐ¸Ñ ÐºÑÑÑов на поле ÑкоÑоÑÑей. Ðо ÑезÑлÑÑаÑам иÑÑледований полÑÑÐµÐ½Ñ ÑоÑмÑла и знаÑÐµÐ½Ð¸Ñ ÑкоÑоÑÑей виÑÐ°Ð½Ð¸Ñ Ð² завиÑимоÑÑи Ð¾Ñ Ð¾ÑиенÑаÑии и ÑазмеÑов наÑекомÑÑ
в пÑоÑÑÑанÑÑве. УÑÑановлено, ÑÑо ÑкоÑоÑÑÑ Ð²Ð¾ÑÑ
одÑÑего поÑока более 35 м/Ñ Ð¾Ð±ÐµÑпеÑÐ¸Ð²Ð°ÐµÑ Ð¾ÑдÑв как взÑоÑлÑÑ
оÑобей, Ñак и лиÑинок незавиÑимо Ð¾Ñ Ð¸Ñ
оÑиенÑаÑии в кожÑÑ
е. ÐÑи моделиÑовании воздÑÑнÑÑ
поÑоков внÑÑÑи кожÑÑ
а ÑеÑалаÑÑ ÑиÑÑема ÑÑавнений гидÑодинамики меÑодом конеÑнÑÑ
ÑлеменÑов Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð²Ñ
одÑÑиÑ
в ÑоÑÑав Ñвободно ÑаÑпÑоÑÑÑанÑемого диÑÑÑибÑÑива CAE-Linux пÑогÑаммнÑÑ
пакеÑов Salome и OpenFoam. УÑÑановлено, ÑÑо внаÑале в ÑенÑÑе ÑеализÑеÑÑÑ Ð²Ð¾ÑÑ
одÑÑий поÑок Ñо ÑкоÑоÑÑÑÑ Ð¿Ð¾ÑÑдка 35 м/Ñ, коÑоÑÑй обдÑÐ²Ð°ÐµÑ ÐºÑÑÑ. ÐоÑле Ñего поÑок "ÑÑ
одиÑ" впÑаво вÑледÑÑвие Ñого, ÑÑо кÑÑÑ ÑÐ¾Ð·Ð´Ð°ÐµÑ Ð³Ð¸Ð´ÑодинамиÑеÑкое ÑопÑоÑивление, не ÑиммеÑÑиÑное оÑноÑиÑелÑно веÑÑикалÑной плоÑкоÑÑи, пÑоÑ
одÑÑей ÑеÑез гоÑизонÑалÑнÑÑ Ð¾ÑÑ ÐºÐ¾Ð¶ÑÑ
а. Ðалее обÑазовалоÑÑ ÑÑÑойÑивое движение поÑока пÑоÑив ÑаÑовой ÑÑÑелки внÑÑÑи ÑÑÑÑойÑÑва. ÐолÑÑеннÑе ÑезÑлÑÑаÑÑ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑ Ð¾Ð±Ð¾ÑноваÑÑ ÑаÑионалÑнÑÑ ÑоÑÐ¼Ñ ÐºÐ¾Ð¶ÑÑ
а и оÑновнÑе конÑÑÑÑкÑивно-ÑеÑ
нологиÑеÑкие паÑамеÑÑÑ Ð¿Ð½ÐµÐ²Ð¼Ð¾Ð¼ÐµÑ
аниÑеÑкого ÑÑÑÑойÑÑва Ð´Ð»Ñ ÑбоÑа колоÑадÑкого жÑка и его лиÑинок. |
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Bibliography: | 10-8899Ð N20 |
ISSN: | 2073-0462 |