Bb Guiqa Cr329448
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The Eighth Asia-Pacific Conference on Wind Engineering, December 10–14, 2013, Chennai, India Experimental analysis on a wind turbine model with a 3-D span wise projection for passive flow control T. A. Sundaravadivel 1 , Dr. S. Nadaraja Pillai 2 , Dr. C. Senthil Kumar 3 1Doctoral Student, Department of Aeronautical Engineering, Madras Institute of Technology, Chennai, TN, India, [email protected] 2 Department of Aeronautical Engineering, J. J. College of Engineering & Technology, Tiruchirapalli, TN, India, [email protected] 3 Department of Aerospace Engineering, Madras Institute of Technology, Anna University, chennai, TN, India, [email protected] ABSTRACT The experimental investigation is carried out on a 1:25 scaled NREL Phase VI wind turbine model. Here an attempt is made to quantify the electrical power which is obtained by rotation of a wind turbine rotor coupled with a 12V DC motor and power resistor decade box circuit. The wind turbine model which is used for the study is a three bladed one with rotor diameter of 10.058 m in full scale and 30 centimeters in model scale. In the present work an attempt is made to study the effectiveness of a passive flow control device (PFC) in the electrical power characteristics of a wind turbine rotor. Experiments are conducted by installing the PFC on various span wise locations (say r/R = 0.9, 0.8 and 0.7). The blades were then tested dynamically in a wind tunnel for 3 different speeds say 4m/s, 6m/s and 8m/s, and displayed a significant improvement in power output. A maximum of 7.16% increase in the power is obtained by installing the PFC device at r/R = 0.7. This power increase can be attributed to additional lift and reduced drag caused by introducing the passive flow control device. Keywords: S 809 Airfoil, spanwise 3 dimensional projection, electrical power. Nomenclature NREL National Renewable Energy Laboratory R Rotor Radius r Span wise Distance 1. Introduction Wind turbines interact with the wind, capturing a part of its kinetic energy and convert it in to usable energy. From the theory of Incompressible flow over finite aircraft wings , when the incoming wind is flown over the blade, there is a quantifiable amount of span wise flow, called as third dimensional flow which is other than axial and lateral component. Due to this span wise flow, vortices are created near the wing tip. The total drag on a three-dimensional wing/blade basically consists of two parts:1) viscous and pressure drag which is due to 2-D nature of the flow, and 2) induced drag due to the 3-D nature of the flow. The induced drag stems from the lift because the trailing vortex system behind the wing induces velocities perpendicular to the free stream direction (downwash). The local inviscid lift forces act perpendicular to the relative velocity, so the induced velocities give rise to Proc. of the 8th Asia-Pacific Conference on Wind Engineering – Nagesh R. Iyer, Prem Krishna, S. Selvi Rajan and P. Harikrishna (eds) Copyright c 2013 APCWE-VIII. All rights reserved. Published by Research Publishing, Singapore. ISBN: 978-981-07-8011-1 doi:10.3850/978-981-07-8012-8 277 1263
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Bb Guiqa Cr329448
Transcript of Bb Guiqa Cr329448
BB Install/Upgrade GUI QA WorksheetThis worksheet is a supplement to the main QA doc and must be attached for all QA requests. Provide relevant details if you answered “No” to any of the questions below.
Ticket Number: 329448Client Name: Luzerne County Community College
Client Systems:
Hostname Internal IP External IPfgprd-185289-160672-app001--luzerne--APP001 10.6.6.94 10.6.6.94fgprd-185289-160672-app002--luzerne--APP002 10.6.6.105 10.6.6.105fgprd-185289-160672-db001--luzerne--DB01 10.6.6.93 10.6.6.93
H/W Details: [] H/W Details: []
Requested URL: 10.6.6.94, 10.6.6.105 Requested TZ: EDT
Build Details:
Blackboard Learn | Release 9.1.201410.160373 Products: Course Delivery, Community Engagement, Content ManagementLogin: Blackboard MH donotdelete (bbsupport)Theme: Bb Learn 2012
Additional Comments:
Verified by (ASP): Gnanaprakash Date: 24-10-2015
Pre-Login Checks: Using a browser,
Yes No N/A
Ensure amiup.jsp status is updated in the QA CR Description Notes. Test the requested URL of the institution. If unsuccessful, use the external IP address found in Opsmart. All images on the gateway page are displayed properly.
At the entry page, login as the support user using the default password.
Admin Panel Checks: Click on System Admin tab,
Yes No N/A
Images along the top frame are displayed properly. Institution logo is present at top left corner. Links in the top frame and tabs direct you to the right page.
Users List & Modify Checks: In System Admin tab, click on “Users,”
Yes No N/A
List all users by clicking on “Users” and “Go” button. Access “Modify User:” page by clicking on “Modify” button.
Courses List & Modify Checks: In System Admin tab, click on “Courses,”
Yes No N/A
Click on “Courses,” then on “Go” to list all courses. Click on a random course to enter its course menu. Navigate areas of course menu without being prompted for login.
Communication Checks: In System Admin tab, click on “Courses” and on “Go,”
Notes:1. Select a random course by clicking on it,2. Click on “Communication,” in the panel on the left, 3. If denied access, click on “Quick Enroll” to access the “Communication” options,4. Click on “Discussion Board,” and on “Go,”5. Click on “Ok” twice to exit.6. Click on “Collaboration,” and on “Join” to access a chat session.7. Click on “Ok” twice to exit.8. Lastly if you had to click on “Quick Enroll” to access the “Communication” options, click on “Quick Unenroll” to exit the “Communication” options.
Yes No N/A
Discussion Board forums are displayed correctly. Click on a Discussion Board forum to list all threads. Discussion Board forums are displayed correctly. Access a chat session by clicking on “Collaboration,” and on “Join”.
Assignment Manager Checks: In System Admin tab, click on “Courses,”
Yes No N/A
Click on “Assignments” in the panel on the left of any random course, The Assignments Manager displays all assignments for the course. Click on any random assignment to display the doc correctly.
Gradebook Checks: From any course, click on “Control Panel,”
Yes No N/A
Click on “Gradebook” in the “Assessment” module to view it. Navigate through “User Options” of Gradebook menu.
Courses Copy Checks: In System Admin tab, click on “Courses,” then on “Go,”
Notes:1. Select a random course - use “bbtest,” if available,2. Select “Copy Course” from the dropdown menu and Click “Go,”3. Click “Copy Course with Users (Exact Copy)”4. Name Destination Course as “mmddyybbslash,”5. Click “Submit” and then “Ok”6. Click “OK” when you see “This course copy action has been successful …” 7. This will return you to the Copy Course Menu, click “OK” and 8. You’re now at the “Courses” Menu9. Using two separate browser sessions, compare the course and its copy.10. If courses do not match, make note of what failed to copy over.11. Then from the “Courses Menu,” enter the course id of the bbslash course, select Course ID from the drop down and Click “Go”,12. Click the check box to the left of the course,13. Click “Remove” on the top menu and when prompted click “OK” to confirm.14. Do NOT remove any course other than the one you created.
Yes No N/A
Select “Copy Course” from the dropdown menu and click “Go,” Click “Copy Course with Users (Exact Copy),” Verify the two course menu items and content areas are identical. Successfully remove the created course.
Course Archive Checks: In System Admin tab, click on “Courses,”
Yes No N/A
Click “Go” to list courses and select one by checking its box on the left, Click on “Modify,” then on “Export/Archive,” to archive the course, View the course archive by attempting the above procedure again, Click “Detailed Log” to verify error free archive process.
Content System Checks: In System Admin tab, in “Blackboard Content System,”
Yes No N/A
The module is displayed free of formatting errors. Click on Manage Content, on “Users,” and “bbsupport” folder, Click “Add Item” and successfully add a random text document. Check the box next to the added item and successfully remove it. Click on the “Courses” folder and check if there are any content
already existent (.doc,.txt, .ppt, etc files) in that folder or its sub-directories Click on any existing content randomly and check its accessibility and
ensure no errors are reported Try downloading the existing content to ensure no errors are reported Try uploading a new file in the “Courses” folder and then delete it
For temporary or permanent clone configurations:
The below checks only needs to be performed for Permanent and Temporary CLONE, and (not for all CRs) GUI Checks.
Yes No N/A Mobile building block settings changed in the gui.
