Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Brent, S. Paul James, S. Uhlman |
| Abstract | With alternative energy becoming more prevalent the acoustic impact of machinery used to generate the energy is of interest. The noise produced from wind turbines is an important factor in the design as it can affect nearby communities. A numerical tool has been developed to predict the unsteady thrust and directly radiated noise from a single or multi-blade row turbomachine, which can easily be applied to a wind turbine. The tool, called TONBROD, can predict blade rate and turbulence ingestion noise, however only the latter is of concern for this work. An asymptotic approach is used to quickly and efficiently predict the unsteady force on each blade from the chopping of incoming turbulence (e.g. turbulence ingestion noise). This force is then used to estimate the radiated noise. A user can prescribe the incoming turbulence intensity (circumferentially and radially varying) and integral length scale (circumferentially uniform but radially varying) that is then modified by the upstream blade row and advected to the downstream blade row through semi-empirical formulations. A prediction of the resulting unsteady force and noise is then made for either blade row. The asymptotic theory is briefly discussed and then the prediction of radiated noise for both homogeneous and inhomogeneous turbulence is compared to experimental data. It is shown that the method provides good results. |
| Sponsorship | Noise Control and Acoustics Division |
| Starting Page | 7 |
| Ending Page | 13 |
| Page Count | 7 |
| File Format | |
| ISBN | 9780791845325 |
| DOI | 10.1115/NCAD2012-0109 |
| Volume Number | ASME 2012 Noise Control and Acoustics Division Conference |
| Conference Proceedings | ASME 2012 Noise Control and Acoustics Division Conference at InterNoise 2012 |
| Language | English |
| Publisher Date | 2012-08-19 |
| Publisher Place | New York City, New York, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Noise (sound) Design Turbulence Blades Renewable energy Acoustics Chopping (physics) Wind turbines Machinery Thrust |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|