Solution d'exercice conditions d’équation de Bernoulli - Dynamique de fluide
Le jet sort
de l'orifice baisse en raison de l'action de la gravité. Il est
schématiquement montré dans la figure suivante. Si la vitesse réelle de
l'eau à vena-contracta est
, La distance parcourue par l'eau dans la direction horizontale est
Et que dans la direction verticale est,
.
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide18_clip_image002.gif](https://2.bp.blogspot.com/-TKPadHz0s_c/WRrgIMVGu3I/AAAAAAAAOX8/fRpl3JU9t9gQUSVH9mFaWK8tKEDKO0yVgCLcB/s1600/image040.gif)
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide18_clip_image004.gif](https://4.bp.blogspot.com/-vBgfBWqK4kM/WRrgIdmYt5I/AAAAAAAAOYE/3FDxjThoF2wFF4EygyIsqxyPCXAnOV9TwCLcB/s1600/image041.gif)
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide18_clip_image006.gif](https://2.bp.blogspot.com/-wW3MbhgLWdA/WRrgIoGodxI/AAAAAAAAOYI/BDLm58YNqEgNGznYj4DuwU29JYbbUFMZgCLcB/s1600/image042.gif)
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide18_clip_image002_0000.gif](https://2.bp.blogspot.com/-Xbgeqt6m-Bk/WRrgIuXk8zI/AAAAAAAAOYg/uOSdMgRAn2M3qpRyHMh2-DrISCHIYPtaACLcB/s1600/image043.gif)
Éliminer
, nous avons, ![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image004.gif](https://1.bp.blogspot.com/-NtS-hvSDokc/WRrgI9Y7mBI/AAAAAAAAOYQ/Z2H9Bwst0KM9gCY4wc-X0jJ6cmnq32NawCLcB/s1600/image045.gif)
La vitesse théorique du jet est donnée par,![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image006.gif](https://1.bp.blogspot.com/-7jRJhE2f0ic/WRrgJBbpGzI/AAAAAAAAOYU/TAzu5Bo5H_I4sI4f_BQmPP3HPENJH4bVACLcB/s1600/image046.gif)
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image002.gif](https://3.bp.blogspot.com/-ArUNBKxZpW4/WRrgIokErvI/AAAAAAAAOYM/G9jf5ChigN4q2mTVcBjT2ue97MT6o8YCACLcB/s1600/image044.gif)
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image004.gif](https://1.bp.blogspot.com/-NtS-hvSDokc/WRrgI9Y7mBI/AAAAAAAAOYQ/Z2H9Bwst0KM9gCY4wc-X0jJ6cmnq32NawCLcB/s1600/image045.gif)
La vitesse théorique du jet est donnée par,
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image006.gif](https://1.bp.blogspot.com/-7jRJhE2f0ic/WRrgJBbpGzI/AAAAAAAAOYU/TAzu5Bo5H_I4sI4f_BQmPP3HPENJH4bVACLcB/s1600/image046.gif)
Tête d'eau dans le réservoir, ![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image008.gif](https://2.bp.blogspot.com/-y7ZsdIpWi18/WRrgJTDE6uI/AAAAAAAAOYc/xNB10te-vR8N7W-WD_-psDWxaJViUEkFgCLcB/s1600/image047.gif)
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image008.gif](https://2.bp.blogspot.com/-y7ZsdIpWi18/WRrgJTDE6uI/AAAAAAAAOYc/xNB10te-vR8N7W-WD_-psDWxaJViUEkFgCLcB/s1600/image047.gif)
i. ![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image002_0000.gif](https://1.bp.blogspot.com/-uKFjyNkRP6A/WRrgJcE_OjI/AAAAAAAAOYY/agHaxZ8NHTU8v4PGJQdJi9oXkUgHqt3RQCLcB/s1600/image048.gif)
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image002_0000.gif](https://1.bp.blogspot.com/-uKFjyNkRP6A/WRrgJcE_OjI/AAAAAAAAOYY/agHaxZ8NHTU8v4PGJQdJi9oXkUgHqt3RQCLcB/s1600/image048.gif)
Zone de l'orifice, ![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image004_0000.gif](https://2.bp.blogspot.com/-D0hRACiCwIw/WRrgJrfRWtI/AAAAAAAAOYk/8Cs7a5o3wPk0OqQcPU2_RC9tf7yhAvmfgCLcB/s1600/image049.gif)
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image004_0000.gif](https://2.bp.blogspot.com/-D0hRACiCwIw/WRrgJrfRWtI/AAAAAAAAOYk/8Cs7a5o3wPk0OqQcPU2_RC9tf7yhAvmfgCLcB/s1600/image049.gif)
Depuis ![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image006_0000.gif](https://2.bp.blogspot.com/-Q4QPSlOm-io/WRrgJ1v-GJI/AAAAAAAAOYs/9SQhOc1mPGw2lohQTpIsUiBgYYh-OFKWwCLcB/s1600/image050.gif)
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image006_0000.gif](https://2.bp.blogspot.com/-Q4QPSlOm-io/WRrgJ1v-GJI/AAAAAAAAOYs/9SQhOc1mPGw2lohQTpIsUiBgYYh-OFKWwCLcB/s1600/image050.gif)
ii. Débit volumique,
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image002_0001.gif](https://4.bp.blogspot.com/-_0OzEd38R4c/WRrgJ2YoTSI/AAAAAAAAOYo/EQrATvTjjJsA7FVRlm6Ip0wAAiyoKwJ2ACLcB/s320/image051.gif)
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image002_0001.gif](https://4.bp.blogspot.com/-_0OzEd38R4c/WRrgJ2YoTSI/AAAAAAAAOYo/EQrATvTjjJsA7FVRlm6Ip0wAAiyoKwJ2ACLcB/s320/image051.gif)
La poussée horizontale sur le réservoir en raison de la question du jet est,
![http://nptel.ac.in/courses/105103095/module04/lect_26/slide19_clip_image004_0001.gif](https://1.bp.blogspot.com/-5ax88LhJ0nI/WRrgKPzq3SI/AAAAAAAAOZo/aLuYwR6TTTcyP51j3ZnHzSZnu8lsEAimACLcB/s1600/image052.gif)
Commentaires
Enregistrer un commentaire